Upgrading kubernetes API

Change-Id: I279db986e2dab1ebcb5b48b4195363af395c8de3
diff --git a/voltha/templates/55-rbac.yaml b/voltha/templates/55-rbac.yaml
index 16ee8b3..c095c34 100644
--- a/voltha/templates/55-rbac.yaml
+++ b/voltha/templates/55-rbac.yaml
@@ -20,7 +20,7 @@
 
 ---
 
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
   name: voltha-clusterrole
@@ -38,7 +38,7 @@
 
 ---
 
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: Role
 metadata:
   name: voltha-role
@@ -81,7 +81,7 @@
 
 ---
 
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
 metadata:
   name: voltha-role-nisa-binding
@@ -97,7 +97,7 @@
 
 ---
 
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
   name: voltha-clusterrole-nisa-binding