change kubernetes to hyperkube

Change-Id: I7c3892ebee4c0ccb334960d8864a956b9c480259
diff --git a/tests/pillar/master_cluster.sls b/tests/pillar/master_cluster.sls
index 670e56a..ca67790 100644
--- a/tests/pillar/master_cluster.sls
+++ b/tests/pillar/master_cluster.sls
@@ -63,3 +63,5 @@
     namespace:
       kube-system:
         enabled: True
+    hyperkube:
+      hash: hnsj0XqABgrSww7Nqo7UVTSZLJUt2XRd