Version bump to SP1A.210406.002 [core/build_id.mk]

Change-Id: Ia910d59724d420970355ff0a5a1b06e9f645786c
diff --git a/core/build_id.mk b/core/build_id.mk
index 1822582..2f51715 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.210406.001
+BUILD_ID=SP1A.210406.002