GRH78B

Change-Id: If073900c338d3cc0efa13564315c9b62daaff7e4
diff --git a/core/build_id.mk b/core/build_id.mk
index bda96bc..3308230 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=GRH78
+export BUILD_ID=GRH78B