Bump k8s version to v1.8.9-7

Change-Id: Iee11d2ef18ab5e6612e02f863b9f1af95dd96f37
diff --git a/classes/cluster/sl-k8s-contrail/kubernetes/init.yml b/classes/cluster/sl-k8s-contrail/kubernetes/init.yml
index f6898b3..3c2f85e 100644
--- a/classes/cluster/sl-k8s-contrail/kubernetes/init.yml
+++ b/classes/cluster/sl-k8s-contrail/kubernetes/init.yml
@@ -16,7 +16,7 @@
     etcd_initial_token: IN7KaRMSo3xkGxkjAAPtkRkAgqN4ZNRq
 
     # component docker images
-    kubernetes_hyperkube_image: docker-prod-virtual.docker.mirantis.net/mirantis/kubernetes/hyperkube-amd64:v1.8.6-5
+    kubernetes_hyperkube_image: docker-prod-virtual.docker.mirantis.net/mirantis/kubernetes/hyperkube-amd64:v1.8.9-7
     kubernetes_netchecker_agent_image: quay.io/l23network/k8s-netchecker-agent:v1.0
     kubernetes_netchecker_server_image: quay.io/l23network/k8s-netchecker-server:v1.0
     kubernetes_externaldns_image: mirantis/external-dns:latest