Restart does not handle custom roles

[supriti]

For rgw and ganesha, restart is called only for roles="ganesha" and roles="rgw". Need to be extended for custom roles as well.

[swiftgist]

With the need_restart checks, we need to extend the changed.py runner to support ganesha and ganehsa custom roles. Ganesha is separate from other Ceph processes not being directly related to ceph.conf.