Version bump to SP1A.210812.009 [core/build_id.mk]

Change-Id: Id3f2789bf6f2f9ceba867bf61d4924f496708188
diff --git a/core/build_id.mk b/core/build_id.mk
index 56590c9..906e960 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.210812.008
+BUILD_ID=SP1A.210812.009