Version bump to RQ2A.210405.004 [core/build_id.mk]

Change-Id: I0a208da2f5e887b1659480554c3015ee10c1ed3b
diff --git a/core/build_id.mk b/core/build_id.mk
index 12365bb..75a32dc 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=RQ2A.210405.003
+BUILD_ID=RQ2A.210405.004