Updated openstack/openstack
Project: openstack/tempest  d6a8c24fe2174384010d4f5054c5824ad2ebe546

add cinder v2 api tests for volume_services

Partially implements: blueprint cinder-v2-api-tests

Change-Id: I1df5ae89f6493c42d00fcf5c1092a1e5c0671b99