Move ceph cluster config out of allNodesConfig

Move ceph cluster config out of allNodesConfig

Pass the list of ceph nodes to the ceph_mon profile via
the service template - this requires some fixup to the
profile to handle the ipv6 case.

Note this also aligns the ServiceNetMap keys so that the
composable node_ips logic will generate the lists when
the ceph_mon service is enabled.

Change-Id: If8a5c65f17e677fe62243b3aa746fd642f72d2b0
Depends-On: I481dd2cd2cde7f1491080e6d9c7dcb7047c22de1
Partially-Implements: blueprint custom-roles