Add primary role for control nodes to contrail labs

Change-Id: I782533d256fa52e8c733d1da92357d9f363a6623
diff --git a/classes/cluster/os-ha-contrail/infra/config.yml b/classes/cluster/os-ha-contrail/infra/config.yml
index 352b5a3..d5d40c0 100755
--- a/classes/cluster/os-ha-contrail/infra/config.yml
+++ b/classes/cluster/os-ha-contrail/infra/config.yml
@@ -156,6 +156,7 @@
         openstack_control_node01:
           classes:
           - service.galera.master.cluster
+          - cluster.os-ha-contrail.openstack.control_init
           params:
             mysql_cluster_role: master
             linux_system_codename: xenial