Updated service to use new XOS core version: 2.1.25

Change-Id: Ied629a8427ea29ca83262a4a723790cdc8f94cf9
diff --git a/VERSION b/VERSION
index c043eea..b1b25a5 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.2.1
+2.2.2