updating bbsim conf

Change-Id: I222901634664cce3658324d3e5db15224fd00a6d
diff --git a/kubernetes-configs/bbsim-voltha-master.yml b/kubernetes-configs/bbsim-voltha-master.yml
index 5a06403..2033a30 100644
--- a/kubernetes-configs/bbsim-voltha-master.yml
+++ b/kubernetes-configs/bbsim-voltha-master.yml
@@ -46,7 +46,7 @@
   vcli:
     tag: 'voltha-1.7'
   ofagent:
-    tag: 'master'
+    tag: 'voltha-1.7'
   netconf:
     tag: 'voltha-1.7'
   envoy_for_etcd: