Updated openstack/openstack
Project: openstack/tempest  4fde40d037c3f53d0d1708d1e0d0fbdfe1d5912e

Enable cinder v2 api for volume hosts

To run v2 api for volume hosts, volume_hosts_v2_client
is added for volume hosts.

Partially implements: blueprint cinder-v2-api-tests

Change-Id: I6a34f401ea8defabbdf1fc83b2769e02444c2a9e