Version bump to QPR1.180423.001

Change-Id: Ib74e55e6ed95e1bd46a51df483c310bed5676ea4
diff --git a/core/build_id.mk b/core/build_id.mk
index 7459069..7a85bc4 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=QPR1.180422.001
+BUILD_ID=QPR1.180423.001