Fix labelname in nodelocaldns yaml

Author: prameshj

cluster/addons/dns/nodelocaldns/nodelocaldns.yaml

@@ -84,7 +84,7 @@ metadata:
   name: node-local-dns
   namespace: kube-system
   labels:
-    k8s-app: kube-dns
+    k8s-app: node-local-dns
     kubernetes.io/cluster-service: "true"
     addonmanager.kubernetes.io/mode: Reconcile
 spec: