Enable mutate for cinder scheduler
Enable mutate for cinder scheduler

Enable cinder service to launch with restart_method as mutate
so that cinder scheduler can enable debug dynamically

Change-Id: I3048efa77a6935f097ba8f96e887ccc2a1db0018
Closes-Bug: 1840487

mahak/cinder,openstack/cinder,openstack/cinder,mahak/cinder