Ensure chrony is restarted
Ensure chrony is restarted

If chrony is already running, we need to make sure that we restart it if
necessary before waiting for the time syncs.

Change-Id: Ic3c7917a4edff46a77d48c07cd77a936f8e63a58
Related-Bug: #1802538

dprince/tripleo-heat-templates,dprince/tripleo-heat-templates,openstack/tripleo-heat-templates,openstack/tripleo-heat-templates