use service type constants from neutron_lib plugins
The well known service type constants are in
neutron_lib.plugins.constants, but for legacy reasons a few still exist
and are referenced from neutron_lib.constants that we'd like to remove.
This patch switches references over to neutron_lib's plugin constants.
Change-Id: I1861448cec303725b30cef8f42029f467f9e03a3
diff --git a/neutron/tests/tempest/api/admin/test_routers_flavors.py b/neutron/tests/tempest/api/admin/test_routers_flavors.py
index d0c2f28..4153c2d 100644
--- a/neutron/tests/tempest/api/admin/test_routers_flavors.py
+++ b/neutron/tests/tempest/api/admin/test_routers_flavors.py
@@ -11,7 +11,7 @@
# License for the specific language governing permissions and limitations
# under the License.
-from neutron_lib import constants
+from neutron_lib.plugins import constants
from tempest.lib import decorators
from tempest.lib import exceptions as lib_exc
import testtools