Changing sanlock not configured print

Instead of asking for restart sanlock service, just prompt sanlock
service is not configured. Restart the service might not be enough if
sanlock configure didn't run before and set the supplementary groups.

Change-Id: I0595f82e710fb023804eada172332cbf95bb0c80
Signed-off-by: Yaniv Bronhaim <ybronhei@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/24012
Reviewed-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Reviewed-by: Dan Kenigsberg <danken@redhat.com>
Tested-by: Dan Kenigsberg <danken@redhat.com>