[VOL-2721]Voltha-openonu-adapter to use latest voltha-protos

Change-Id: I7bff4e2954cb244dff9082b7e31cb378a169a404
diff --git a/python/requirements.txt b/python/requirements.txt
index e0c2769..f35a394 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -1,2 +1,2 @@
-voltha-protos==3.2.3
+voltha-protos==3.2.6
 pyvoltha==2.3.20