OC+k8s: add roles (primary & secondary) to contrail nodes

Change-Id: I342adb8100bebe199c092323bfbd08c7c31ebb30
Related-PROD: PROD-26827
diff --git a/opencontrail/control/cluster4_0_k8s.yml b/opencontrail/control/cluster4_0_k8s.yml
index 03ad89c..cf9a8e7 100644
--- a/opencontrail/control/cluster4_0_k8s.yml
+++ b/opencontrail/control/cluster4_0_k8s.yml
@@ -43,6 +43,7 @@
       network:
         host: ${_param:openstack_control_address}
     collector:
+      role: ${_param:opencontrail_node_role}
       config_only: true
       discovery:
         host: None
@@ -98,6 +99,7 @@
         region: ${_param:openstack_region}
         host: ${_param:openstack_control_address}
     control:
+      role: ${_param:opencontrail_node_role}
       config_only: true
       identity:
         host: ${_param:openstack_control_address}