Actually disable ssl for rabbitmq service

cherry-picked from (477ea057ffe977b7a803f4b8b921ac782830bd23)
Change-Id: I752bf90692c0df5643882c6273f1244e5ebafaf1
diff --git a/classes/cluster/virtual-mcp11-aio/openstack/init.yml b/classes/cluster/virtual-mcp11-aio/openstack/init.yml
index a87c6d0..b8eba55 100755
--- a/classes/cluster/virtual-mcp11-aio/openstack/init.yml
+++ b/classes/cluster/virtual-mcp11-aio/openstack/init.yml
@@ -142,6 +142,10 @@
       max_connections: 1000
     slave:
       enabled: false
+  rabbitmq:
+    server:
+      ssl:
+        enabled: ${_param:rabbitmq_ssl_enabled}
   barbican:
     server:
       ks_notifications_enable: True