Currently both 'deployment:rgw_keystone_user_and_endpoints`
and 'conf: rgw_ks' are used and set to true to deploy
ceph-rgw with keystone integration.
Going forward, we should only use `conf: rgw_ks: enabled: true`
to deploy ceph-rgw with keystone integration.
Change-Id: I17aecd4f977ed897bb0771edc9acafd4479777d1
3552406832