Make change and version bump to N9F27M

Change-Id: I9ea7148a634af95fea3763d049250f049b464631
diff --git a/core/build_id.mk b/core/build_id.mk
index 9080787..3142d0e 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=N9F27L
+export BUILD_ID=N9F27M