Add include of cluster.dns in pike ssl

Without - cluster.virtual-mcp-pike-dvr-ssl.openstack.dns
Execution fails:
No minions matched the target. No command was sent, no jid was assigned.

Change-Id: I6b43ff82df47790dc1649603d9f7ff114524d2ab
diff --git a/classes/cluster/virtual-mcp-pike-dvr-ssl/openstack/control.yml b/classes/cluster/virtual-mcp-pike-dvr-ssl/openstack/control.yml
index e7f48a6..3c994fb 100644
--- a/classes/cluster/virtual-mcp-pike-dvr-ssl/openstack/control.yml
+++ b/classes/cluster/virtual-mcp-pike-dvr-ssl/openstack/control.yml
@@ -40,6 +40,7 @@
 - system.galera.server.database.keystone
 - system.galera.server.database.nova
 - system.galera.server.database.designate
+- cluster.virtual-mcp-pike-dvr-ssl.openstack.dns
 - system.haproxy.proxy.listen.openstack.nova-placement
 - cluster.virtual-mcp-pike-dvr-ssl