HRG51B

Change-Id: If037010b68cece0f47e37f61db09e6ff72c7d996
diff --git a/core/build_id.mk b/core/build_id.mk
index 5e3e849..e1fc131 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=HRG51
+export BUILD_ID=HRG51B