[VOL-5566] - fix race condition in heartbeat routine during OLT reboot

Change-Id: I7b6ee90ec4118170969c85b0f826dcec5f04597c
Signed-off-by: Sridhar Ravindra <sridhar.ravindra@radisys.com>
diff --git a/VERSION b/VERSION
index 6caac4a..6ee1bd8 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.6.18
+4.6.19