DP: Log to syslog whether it's online or offline
Instead of requiring that admins enable and look at our logs, let's log
to syslog what's the DP status.
Resolves:
https://pagure.io/SSSD/sssd/issue/3307
Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>
Reviewed-by: Pavel Březina <pbrezina@redhat.com>