net/ceph: rename to net/ceph12, update 12.2.7 -> 12.2.11
PR: 236004
Submitted by: Willem Jan Withagen <wjw@digiware.nl> (maintainer)
Relnotes: https://ceph.com/releases/v12-2-11-luminous-released/
https://ceph.com/releases/v12-2-10-luminous-released/ https://ceph.com/releases/v12-2-8-released/