[VOL-2960] Set correct default power level mode for GPON ONUs

- Power Level Mode for ITU GPON interface is set to its default value (i.e. 0)
  since it is set to 2 by default.

Change-Id: Ib3c2b26536b5153b0dda15984077a75bce060213
diff --git a/VERSION b/VERSION
index 7bf4b6a..e30309f 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.4.6
+2.4.7