Version bump to UP1A.230905.016.A2 [core/build_id.mk]

Change-Id: Idfe9de1d3ed702490aa83a2b51cd81bfaa42fe49
diff --git a/core/build_id.mk b/core/build_id.mk
index 850d6e2..7310d20 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=UP1A.230905.016.A1
+BUILD_ID=UP1A.230905.016.A2