validate: print a message for old scenarios
validate: print a message for old scenarios

ceph-disk is not supported anymore, so all the newly created OSDs will
be configured using ceph-volume.

Signed-off-by: Sébastien Han <62d754cc350e84d3b1c32ae79f976f5348e74a40@redhat.com>

ceph/ceph-ansible,ceph/ceph-ansible