Version bump to N6F27M

Change-Id: I8748984da5d896640e64f8b026036e15c5e83e26
diff --git a/core/build_id.mk b/core/build_id.mk
index 0175890..91854e7 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=N6F27L
+export BUILD_ID=N6F27M