Upgrading kubernetes API

Change-Id: I279db986e2dab1ebcb5b48b4195363af395c8de3
diff --git a/voltha/templates/10-default-backend.yaml b/voltha/templates/10-default-backend.yaml
index 6ada98f..7ee1ddd 100644
--- a/voltha/templates/10-default-backend.yaml
+++ b/voltha/templates/10-default-backend.yaml
@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: default-http-backend
@@ -22,6 +22,10 @@
   namespace: {{ .Values.global.namespace }}
 spec:
   replicas: 1
+  selector:
+    matchLabels:
+      name: default-http-backend
+      release: {{ .Release.Name }}
   template:
     metadata:
       labels: