[VOL-5527] update periodic nni stats

Change-Id: I2bbf60a3fc3bad73de4db78902d57eb0264cb26f
Signed-off-by: Akash Reddy Kankanala <akash.kankanala@radisys.com>
diff --git a/VERSION b/VERSION
index fb7d3cc..6caac4a 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.6.17
+4.6.18