Update sl-os-contrail model to ocata

Change-Id: Iee4c367102ced269ef20752a6398494a35f03058
diff --git a/classes/cluster/sl-os-contrail/openstack/dashboard.yml b/classes/cluster/sl-os-contrail/openstack/dashboard.yml
index 0068d41..4b8ad35 100755
--- a/classes/cluster/sl-os-contrail/openstack/dashboard.yml
+++ b/classes/cluster/sl-os-contrail/openstack/dashboard.yml
@@ -6,6 +6,7 @@
 - system.horizon.server.single
 - system.horizon.server.plugin.contrail
 - system.horizon.server.plugin.overrides
+- system.horizon.server.plugin.theme
 - cluster.sl-os-contrail
 parameters:
   _param:
@@ -19,7 +20,3 @@
           proto: static
           address: ${_param:single_address}
           netmask: 255.255.255.0
-  horizon:
-    server:
-      identity:
-        host: ctl
\ No newline at end of file