Skip facts_mon_fsid.yml if cephx is disabled
Skip facts_mon_fsid.yml if cephx is disabled

If cephx is disabled it is not necessary to include `facts_mon_fsid.yml`
in `roles/ceph-common/tasks/facts.yml`.

Fix: #1300
Signed-off-by: Guillaume Abrioux <30a9df5a0293a6108675377fa1673f7aa713f915@redhat.com>

ceph/ansible-ceph-common