Updated openstack/openstack
Project: openstack/nova  9c313f701cbc932c4b5a3fd8908a053818a3850e
null
Fix the rpc module import in the service module

After porting Nova to oslo.messaging, we forgot to change the import to
point to the new rpc module, and thus the rpc cleanup() method was never
called on service shutdown.

Change-Id: Ic06a19d9b9b98e1575d0aa72afa0d5ae71f6513a