Version bump to NHG47Q

Change-Id: I678d0e4ed51998f61ea277fcdb991a1f2b000ed2
diff --git a/core/build_id.mk b/core/build_id.mk
index 1f78bb7..e6a25be 100644
--- a/core/build_id.mk
+++ b/core/build_id.mk
@@ -18,4 +18,4 @@
 # (like "CRB01").  It must be a single word, and is
 # capitalized by convention.
 
-export BUILD_ID=NHG47P
+export BUILD_ID=NHG47Q