Version bump to RD2A.210905.002 [core/build_id.mk]

Change-Id: I24364b4ba1aefa24192f981d2f825c539943e50c
diff --git a/core/build_id.mk b/core/build_id.mk
index 4ff6936..ae09f5e 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=RD2A.210905.001
+BUILD_ID=RD2A.210905.002