Add chrony waitsync back in

This is a revert of 373a27163e because
makestep does not fail if the ntp servers are unavailable. This change
adds waitsync back in so it fails if the servers are unavilable but
leaves the makestep in place which should force the sync.  If the
servers are unavailable, the waitsync should catch it. If they are
available waitsync should be a relative noop because the makestep would
sync the system.  The waitsync has been increased to 5 minutes (from 200
seconds). waitsync will wait 30 times with an interval of 10 seconds
between checks.

Closes-Bug: #1955414
Change-Id: I4ac9210f6533e6826b2814f72b7271b43fdca267
(cherry picked from commit 8d46c9c381)

deployment/timesync/chrony-baremetal-ansible.yaml

@@ -122,8 +122,10 @@ outputs:
         - name: Install, Configure and Run Chrony
           include_role:
             name: chrony
-        - name: Ensure system is NTP time synced
+        - name: Force NTP sync
           command: chronyc makestep
+        - name: Ensure system is NTP time synced
+          command: chronyc waitsync 30
       ansible_group_vars:
         chrony_role_action: all
         chrony_ntp_servers: {get_param: NtpServer}

firstboot/userdata_timesync.yaml

@@ -75,6 +75,7 @@ resources:
             if [ "$service" = "chrony" ]; then
                 if command -v chronyc >/dev/null; then
                     chronyc makestep
+                    chronyc waitsync 30
                 else
                     echo "No chronyc available, skipping sync"
                 fi