support for rlt-1600g-w and rlt-1600x-w in GPON mode

Change-Id: Ib230d3e336043980eb00427384a49cb8bd386bb2
diff --git a/VERSION b/VERSION
index 414a102..1545d96 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.5.0-dev
+3.5.0