GWK15

Change-Id: Ie8bb113d5c260d11a662c5fcc74b46bcab4a90ad
diff --git a/core/build_id.mk b/core/build_id.mk
index 86f11b7..0463c8e 100644
--- a/core/build_id.mk
+++ b/core/build_id.mk
@@ -19,4 +19,4 @@
 # (like "CRB01").  It must be a single word, and is
 # capitalized by convention.
 
-export BUILD_ID=GWK14B
+export BUILD_ID=GWK15