Fix backup path add ceph backup

Change-Id: I70193e0157d715250589a7030782282c16c69eb0
diff --git a/classes/cluster/virtual-mcp-pike-dvr-ceph-rgw/openstack/control.yml b/classes/cluster/virtual-mcp-pike-dvr-ceph-rgw/openstack/control.yml
index 8ad6fe3..d94026e 100644
--- a/classes/cluster/virtual-mcp-pike-dvr-ceph-rgw/openstack/control.yml
+++ b/classes/cluster/virtual-mcp-pike-dvr-ceph-rgw/openstack/control.yml
@@ -10,6 +10,7 @@
 - system.keystone.server.wsgi
 - system.keystone.server.cluster
 - system.glusterfs.client.cluster
+- system.glusterfs.server.volume.salt_pki
 - system.glusterfs.client.volume.glance
 - system.glusterfs.client.volume.keystone
 - system.glusterfs.server.volume.glance