Use the prefix-embedded rand_name method

A version of data_utils.rand_name in tempest_lib was created in tempest to
include a prefix specified in the conf file. This commit changes the
data_utils imports to use the new one in tempest.

Change-Id: Ie3fb5c3ac9afe365bf24e40b00be88d66da7c507
diff --git a/tempest/api/volume/admin/test_multi_backend.py b/tempest/api/volume/admin/test_multi_backend.py
index b8047b2..c7e989d 100644
--- a/tempest/api/volume/admin/test_multi_backend.py
+++ b/tempest/api/volume/admin/test_multi_backend.py
@@ -11,9 +11,9 @@
 #    under the License.
 
 from oslo_log import log as logging
-from tempest_lib.common.utils import data_utils
 
 from tempest.api.volume import base
+from tempest.common.utils import data_utils
 from tempest import config
 from tempest import test
 
diff --git a/tempest/api/volume/admin/test_snapshots_actions.py b/tempest/api/volume/admin/test_snapshots_actions.py
index b885f7d..c860b4b 100644
--- a/tempest/api/volume/admin/test_snapshots_actions.py
+++ b/tempest/api/volume/admin/test_snapshots_actions.py
@@ -13,9 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest_lib.common.utils import data_utils
-
 from tempest.api.volume import base
+from tempest.common.utils import data_utils
 from tempest import test
 
 
diff --git a/tempest/api/volume/admin/test_volume_quotas.py b/tempest/api/volume/admin/test_volume_quotas.py
index ec8e040..1a48204 100644
--- a/tempest/api/volume/admin/test_volume_quotas.py
+++ b/tempest/api/volume/admin/test_volume_quotas.py
@@ -13,9 +13,9 @@
 #    under the License.
 
 import six
-from tempest_lib.common.utils import data_utils
 
 from tempest.api.volume import base
+from tempest.common.utils import data_utils
 from tempest import test
 
 QUOTA_KEYS = ['gigabytes', 'snapshots', 'volumes']
diff --git a/tempest/api/volume/admin/test_volume_types.py b/tempest/api/volume/admin/test_volume_types.py
index ea9864e..b79c185 100644
--- a/tempest/api/volume/admin/test_volume_types.py
+++ b/tempest/api/volume/admin/test_volume_types.py
@@ -13,9 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest_lib.common.utils import data_utils
-
 from tempest.api.volume import base
+from tempest.common.utils import data_utils
 from tempest import config
 from tempest import test
 
diff --git a/tempest/api/volume/admin/test_volume_types_extra_specs.py b/tempest/api/volume/admin/test_volume_types_extra_specs.py
index 2feb062..c840697 100644
--- a/tempest/api/volume/admin/test_volume_types_extra_specs.py
+++ b/tempest/api/volume/admin/test_volume_types_extra_specs.py
@@ -13,9 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest_lib.common.utils import data_utils
-
 from tempest.api.volume import base
+from tempest.common.utils import data_utils
 from tempest import test
 
 
diff --git a/tempest/api/volume/admin/test_volume_types_extra_specs_negative.py b/tempest/api/volume/admin/test_volume_types_extra_specs_negative.py
index a70a940..e49e8b2 100644
--- a/tempest/api/volume/admin/test_volume_types_extra_specs_negative.py
+++ b/tempest/api/volume/admin/test_volume_types_extra_specs_negative.py
@@ -15,10 +15,10 @@
 
 import uuid
 
-from tempest_lib.common.utils import data_utils
 from tempest_lib import exceptions as lib_exc
 
 from tempest.api.volume import base
+from tempest.common.utils import data_utils
 from tempest import test
 
 
diff --git a/tempest/api/volume/admin/test_volumes_actions.py b/tempest/api/volume/admin/test_volumes_actions.py
index 8a30a10..4288d58 100644
--- a/tempest/api/volume/admin/test_volumes_actions.py
+++ b/tempest/api/volume/admin/test_volumes_actions.py
@@ -13,9 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest_lib.common.utils import data_utils as utils
-
 from tempest.api.volume import base
+from tempest.common.utils import data_utils as utils
 from tempest import test
 
 
diff --git a/tempest/api/volume/admin/test_volumes_backup.py b/tempest/api/volume/admin/test_volumes_backup.py
index 8b85da3..2c545a7 100644
--- a/tempest/api/volume/admin/test_volumes_backup.py
+++ b/tempest/api/volume/admin/test_volumes_backup.py
@@ -14,9 +14,9 @@
 #    under the License.
 
 from oslo_log import log as logging
-from tempest_lib.common.utils import data_utils
 
 from tempest.api.volume import base
+from tempest.common.utils import data_utils
 from tempest import config
 from tempest import test
 
diff --git a/tempest/api/volume/base.py b/tempest/api/volume/base.py
index 7f56b18..f8ae5eb 100644
--- a/tempest/api/volume/base.py
+++ b/tempest/api/volume/base.py
@@ -14,10 +14,10 @@
 #    under the License.
 
 from oslo_log import log as logging
-from tempest_lib.common.utils import data_utils
 from tempest_lib import exceptions as lib_exc
 
 from tempest.common import fixed_network
+from tempest.common.utils import data_utils
 from tempest import config
 from tempest import exceptions
 import tempest.test
diff --git a/tempest/api/volume/test_qos.py b/tempest/api/volume/test_qos.py
index 863a698..84fd7f6 100644
--- a/tempest/api/volume/test_qos.py
+++ b/tempest/api/volume/test_qos.py
@@ -12,9 +12,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest_lib.common.utils import data_utils as utils
-
 from tempest.api.volume import base
+from tempest.common.utils import data_utils as utils
 from tempest import test
 
 
diff --git a/tempest/api/volume/test_volumes_actions.py b/tempest/api/volume/test_volumes_actions.py
index 375d34a..0ebcf3a 100644
--- a/tempest/api/volume/test_volumes_actions.py
+++ b/tempest/api/volume/test_volumes_actions.py
@@ -13,9 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest_lib.common.utils import data_utils
-
 from tempest.api.volume import base
+from tempest.common.utils import data_utils
 from tempest import config
 from tempest import test
 import testtools
diff --git a/tempest/api/volume/test_volumes_get.py b/tempest/api/volume/test_volumes_get.py
index 8337f8d..29c21ed 100644
--- a/tempest/api/volume/test_volumes_get.py
+++ b/tempest/api/volume/test_volumes_get.py
@@ -13,10 +13,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest_lib.common.utils import data_utils
 from testtools import matchers
 
 from tempest.api.volume import base
+from tempest.common.utils import data_utils
 from tempest import config
 from tempest import test
 
diff --git a/tempest/api/volume/test_volumes_list.py b/tempest/api/volume/test_volumes_list.py
index da0d5aa..3847877 100644
--- a/tempest/api/volume/test_volumes_list.py
+++ b/tempest/api/volume/test_volumes_list.py
@@ -16,10 +16,10 @@
 import operator
 
 from oslo_log import log as logging
-from tempest_lib.common.utils import data_utils
 from testtools import matchers
 
 from tempest.api.volume import base
+from tempest.common.utils import data_utils
 from tempest import test
 
 LOG = logging.getLogger(__name__)
diff --git a/tempest/api/volume/test_volumes_negative.py b/tempest/api/volume/test_volumes_negative.py
index b591a1a..da8f52a 100644
--- a/tempest/api/volume/test_volumes_negative.py
+++ b/tempest/api/volume/test_volumes_negative.py
@@ -15,10 +15,10 @@
 
 import uuid
 
-from tempest_lib.common.utils import data_utils
 from tempest_lib import exceptions as lib_exc
 
 from tempest.api.volume import base
+from tempest.common.utils import data_utils
 from tempest import test
 
 
diff --git a/tempest/api/volume/test_volumes_snapshots.py b/tempest/api/volume/test_volumes_snapshots.py
index 550c3b6..340f019 100644
--- a/tempest/api/volume/test_volumes_snapshots.py
+++ b/tempest/api/volume/test_volumes_snapshots.py
@@ -11,9 +11,9 @@
 #    under the License.
 
 from oslo_log import log as logging
-from tempest_lib.common.utils import data_utils
 
 from tempest.api.volume import base
+from tempest.common.utils import data_utils
 from tempest import config
 from tempest import test
 
diff --git a/tempest/api/volume/test_volumes_snapshots_negative.py b/tempest/api/volume/test_volumes_snapshots_negative.py
index 77f8552..b604360 100644
--- a/tempest/api/volume/test_volumes_snapshots_negative.py
+++ b/tempest/api/volume/test_volumes_snapshots_negative.py
@@ -12,10 +12,10 @@
 
 import uuid
 
-from tempest_lib.common.utils import data_utils
 from tempest_lib import exceptions as lib_exc
 
 from tempest.api.volume import base
+from tempest.common.utils import data_utils
 from tempest import config
 from tempest import test