Updated openstack/openstack
Project: openstack/cinder  e52445681400ff1f8a78a39dca07d4d9711dfe52

Properly initialize rpc in cinder-volume-usage-audit

When RPC isn't initialized, any RPC based notifiers will fail, which
renders cinder-volume-usage-audit mostly useless.

Change-Id: I0b2d63871c0e57f8a9a55059c5fa22dc785b2767
Closes-Bug: #1316483