GRG20

Change-Id: Ib98b9aa208b3e6a45c776b6d409413be3d33bcbb
diff --git a/core/build_id.mk b/core/build_id.mk
index 3b39aae..0907ad6 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=GRG19
+export BUILD_ID=GRG20