Version bump to QP1A.190131.004

Change-Id: If34b58c88b286417dd17cf0daf95c0cad009981b
diff --git a/core/build_id.mk b/core/build_id.mk
index adbf82f..c602961 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.190131.003
+BUILD_ID=QP1A.190131.004