Releasing OpenOlt Adapter for voltha-2.6

Change-Id: If576b58947815ff0f6bb03bf3ee5700f105553ef
diff --git a/VERSION b/VERSION
index 7364556..b502146 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.0.2-dev
+3.0.2