Handle upgrading cinder-volume under pacemaker

Handle upgrading cinder-volume under pacemaker

Add upgrade tasks for cinder-volume when it's controlled by pacemaker:

o Stop the service before the entire pacemaker cluster is stopped.
  This ensures the service is stopped before infrastructure services
  (e.g. rabbitmq) go away.
o Migrate the cinder DB prior to restarting the service. This covers
  the situation when puppet-cinder (who otherwise would handle the db
  sync) isn't managing the service.
o Start the service after the rest of the pacemaker cluster has been
  started.

Closes-Bug: #1691851
Change-Id: I5874ab862964fadb68320d5c4de39b20f53dc25c