Version bump to SD2A.210715.002 [core/build_id.mk]

Change-Id: I550473e9cae21d44ba0271626725dceab359d8c7
diff --git a/core/build_id.mk b/core/build_id.mk
index b53e80a..a80a580 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=SD2A.210715.001
+BUILD_ID=SD2A.210715.002