Change k8s network.engine to network.cnis list.

Change-Id: I43d26f79bed68e32c189f04120769427b7eccc81
diff --git a/classes/cluster/virtual-mcp11-k8s-contrail/kubernetes/compute.yml b/classes/cluster/virtual-mcp11-k8s-contrail/kubernetes/compute.yml
index f1b3f79..60c2328 100644
--- a/classes/cluster/virtual-mcp11-k8s-contrail/kubernetes/compute.yml
+++ b/classes/cluster/virtual-mcp11-k8s-contrail/kubernetes/compute.yml
@@ -36,7 +36,8 @@
       kubelet:
         fail_on_swap: ${_param:kubelet_fail_on_swap}
       network:
-        engine: opencontrail
+        cnis:
+        - opencontrail
         contrail:
           config:
             api: