ceph: log the operator settings and their source
ceph: log the operator settings and their source

The operator settings can come either from the configmap, an
env var, or a default value. Knowing where the setting is loaded
from is an important detail to see in the log.

Signed-off-by: Travis Nielsen <a8b474fdb3f77f44446f0ab9ddca8147b09b3a9e@redhat.com>

rook/rook,rook/rook,rook/rook,rook/nfs,rook/nfs,rook/nfs,rook/rook,rook/rook