Version bump to SP1A.210504.002 [core/build_id.mk]

Change-Id: Ibdbc9d2fcbdc9b6039abb0e6f5fe0484698a0347
diff --git a/core/build_id.mk b/core/build_id.mk
index 8804ad2..a972193 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=SP1A.210504.001
+BUILD_ID=SP1A.210504.002