fixes a nil pointer dereference in GetProbeWithDefaults when
startupProbe is set in cephfilesystem and currentProbe is nil.
adds panic recovery in cephfilesystem reconcile loop to improve
error visibility and avoid silent reconcile restarts.
Signed-off-by: Oded Viner <oviner@redhat.com>
(cherry picked from commit 51e9ddc3f5)