Add support of multiple CNIs

Change-Id: Ib2fba96acfd63830bbc6ba4bdce0112ca492df1f
diff --git a/tests/pillar/pool_cluster.sls b/tests/pillar/pool_cluster.sls
index 677d7b2..21c8448 100644
--- a/tests/pillar/pool_cluster.sls
+++ b/tests/pillar/pool_cluster.sls
@@ -2,8 +2,6 @@
   common:
     cluster_domain: cluster.local
     cluster_name: cluster
-    network:
-      engine: none
     hyperkube:
       image: hyperkube-amd64:v1.6.4-3
       hash: hnsj0XqABgrSww7Nqo7UVTSZLJUt2XRd
@@ -50,7 +48,8 @@
       kube_proxy: DFvQ8GelB7afH3wClC9romaMPhquyyEe
     ca: kubernetes
     network:
-      engine: calico
+      cnis:
+      - calico
       calico:
         calicoctl_image: calico/ctl
         cni_image: calico/cni