add redhat_storage to the mon configure schema
add redhat_storage to the mon configure schema

Even though we're not installing packages ceph-ansible still needs to
know if we're configuring red hat ceph storage or the upstream version
of ceph.

Signed-off-by: Andrew Schoen <1bb641dc23c3a93cce4eee683bcf4b2bea7903a3@redhat.com>

ceph/ceph-installer,ceph/ceph-installer,ceph/mariner-installer,ceph/ceph-installer