Version bump to AP3A.240905.013.A1 [core/build_id.mk]

Change-Id: I1688fc005a837b3e78925b563360821d3bb8029b
diff --git a/core/build_id.mk b/core/build_id.mk
index 9ef5a81..835b4c5 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=AP3A.240905.013
+BUILD_ID=AP3A.240905.013.A1