Version bump to QP1A.180919.002

Change-Id: I153529634d3409117ec57e7d2112d1bf14c9c50d
diff --git a/core/build_id.mk b/core/build_id.mk
index dc7b09f..c69c7bf 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.
 
-BUILD_ID=QP1A.180919.001
+BUILD_ID=QP1A.180919.002