Switch to keystonercv3 in OS tests

Change-Id: Ie8c7ad7e5997f5744e263b068a3c6e68694b76aa
diff --git a/cvp_checks/tests/test_cinder_services.py b/cvp_checks/tests/test_cinder_services.py
index f6aaf4a..e6b8c8e 100644
--- a/cvp_checks/tests/test_cinder_services.py
+++ b/cvp_checks/tests/test_cinder_services.py
@@ -13,12 +13,12 @@
     service_down = local_salt_client.cmd(
         'keystone:server',
         'cmd.run',
-        ['. /root/keystonerc; cinder service-list | grep "down\|disabled"'],
+        ['. /root/keystonercv3; cinder service-list | grep "down\|disabled"'],
         expr_form='pillar')
     cinder_volume = local_salt_client.cmd(
         'keystone:server',
         'cmd.run',
-        ['. /root/keystonerc; cinder service-list | grep -c "volume"'],
+        ['. /root/keystonercv3; cinder service-list | grep -c "volume"'],
         expr_form='pillar')
     backends_cinder = cinder_backends_info[cinder_backends_info.keys()[0]]
     backends_num = len(backends_cinder.keys())