VOL-3121 - Added filter argument to ports_state_update().

Change-Id: If39886bd5b103fa3dbcf4d6bffbde1cc497901b0
diff --git a/VERSION b/VERSION
index 73462a5..f225a78 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.5.1
+2.5.2