GRK71 again

Change-Id: I4ad2c1583e83f1208ca1c519ea1c03352f335e61
diff --git a/core/build_id.mk b/core/build_id.mk
index 401caae..3178b48 100644
--- a/core/build_id.mk
+++ b/core/build_id.mk
@@ -19,5 +19,4 @@
 # (like "CRB01").  It must be a single word, and is
 # capitalized by convention.
 
-export BUILD_ID=GRK71
-
+export BUILD_ID=GRK71