Fix kubernetes_contrail_network_controller parameter.

* Fixed kubernetes_contrail_network_controller parameter
in k8s-ha-contrail model.

Change-Id: I309ed82624fe0bde46b9a56471a3dd06f57d8552
diff --git a/classes/cluster/k8s-ha-contrail/kubernetes/compute.yml b/classes/cluster/k8s-ha-contrail/kubernetes/compute.yml
index f57d1ab..1e9913f 100644
--- a/classes/cluster/k8s-ha-contrail/kubernetes/compute.yml
+++ b/classes/cluster/k8s-ha-contrail/kubernetes/compute.yml
@@ -56,7 +56,6 @@
           namespace: ${_param:kubernetes_addon_namespace}
           image: ${_param:kubernetes_virtlet_image}
           hosts:
-          - ${_param:kubernetes_compute_node01_hostname}
-          - ${_param:kubernetes_compute_node02_hostname}
+          - ${linux:system:name}
       hyperkube:
         image: ${_param:kubernetes_hyperkube_image}