Version bump to SD1A.210709.002 [core/build_id.mk]

Change-Id: I17ba50ddbc3d2e414dd45ca0a82f6d11f9d826b4
diff --git a/core/build_id.mk b/core/build_id.mk
index ecc2f3e..d6d0db4 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=SD1A.210709.001
+BUILD_ID=SD1A.210709.002