Make change and version bump to QP1A.190402.001

Change-Id: Ib015719472805e547853212d61ebc8bc04a15f68
diff --git a/core/build_id.mk b/core/build_id.mk
index 2f9c3f3..4894f3a 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=MASTER
+BUILD_ID=QP1A.190402.001