reset-db restarts mysql only when a change is made
reset-db restarts mysql only when a change is made

Reset-db should not restart the mysql service unless it needs to.

Change-Id: I102dedb00d589661b57768e8966995bda2e22ed8

radez/tripleo-image-elements,openstack/tripleo-image-elements,rdo-management/tripleo-image-elements,radez/tripleo-image-elements,rdo-management/tripleo-image-elements,openstack/tripleo-image-elements