Using VOLTHA master on onf-demo-pod

Change-Id: Ie225569903b1236feb7253946dbed6ed5a52230a
diff --git a/kubernetes-configs/voltha/onf-demo-pod.yml b/kubernetes-configs/voltha/onf-demo-pod.yml
index 1ae6459..d6fd241 100644
--- a/kubernetes-configs/voltha/onf-demo-pod.yml
+++ b/kubernetes-configs/voltha/onf-demo-pod.yml
@@ -16,7 +16,7 @@
 # Automated deployment configuration for ONF DEMO POD, olt/onu are connected to this
 
 defaults:
-  image_tag: voltha-2.1
+  image_tag: master
   image_pullPolicy: Always
 
 images: