As described in bug #1728527 cibadmin does not expose the state of
the pacemaker-remote nodes which means hostmonitor cannot track
them. This change switches to use crm_mon to check the status of
remote nodes if the new config option host.restrict_to_remotes
to set to True. This will trigger host monitor to use crm_mon
to monitor nodes and will only monitor nodes that are marked
as remotes (not members).
Change-Id: I3f2026805413504c875ea5f39eb036d44b26dd43
Depends-On: Iaa2251708616e9c69817bf5b346d795ea7a4d21b
Closes-Bug: #1728527
(cherry picked from commit dc9b777724)