Make change and version bump to PQ1A.181201.001

Change-Id: Ia73a4b39d56d979a1584d0546e160dcf7401e2bf
diff --git a/core/build_id.mk b/core/build_id.mk
index 907e38c..c78a83e 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=PQ1A.181105.017
+export BUILD_ID=PQ1A.181201.001