ceph-defaults: do not use podman only on atomic
ceph-defaults: do not use podman only on atomic

We want to test podman on f29 non-atomic, atomic is not a hard
requirement. However, if you want to get podman then you will have to
install it first before running the playbook.

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

fgal/ceph-ansible,ceph/ceph-ansible,ceph/ceph-ansible,fgal/ceph-ansible