Updating OLT serial in Berlin

Change-Id: Ic1c407749665cb41a395a7462a20455a9581cd3f
diff --git a/VERSION b/VERSION
index 36b69a6..37c6fdb 100755
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.8.22
+2.8.23