using master for olt-service version

Change-Id: I7202e9f50cb78684afe2b5f8e94e2b3ba41d1c84
diff --git a/kubernetes-configs/bbsim-voltha-master.yml b/kubernetes-configs/bbsim-voltha-master.yml
index bb7afec..2a48612 100644
--- a/kubernetes-configs/bbsim-voltha-master.yml
+++ b/kubernetes-configs/bbsim-voltha-master.yml
@@ -86,7 +86,7 @@
     tag: 'latest'
 volt:
   image:
-    tag: '2.2.3'
+    tag: 'master'
 rcord:
   image:
     tag: 'master'