VOL-5088
v2.12 - update voltha.protos version in all go.mod configs

Change-Id: Id71bd5e9ead1c5958956c4f1cf95482383890412
diff --git a/VERSION b/VERSION
index c4ac44d..4327054 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.3.5.2-dev
+4.3.6