Version bump to PD2A.181227.002

Change-Id: Ife1bc5c8cf41add2f61262a95419bc48f888e438
diff --git a/core/build_id.mk b/core/build_id.mk
index c649a92..93387bf5 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=PD2A.181227.001
+export BUILD_ID=PD2A.181227.002