Version bump to BP2A.250605.031.A2 [core/build_id.mk]

Change-Id: I4a0b67cda4db711aa5fab13242088d60da76fd69
diff --git a/core/build_id.mk b/core/build_id.mk
index 3eb4cb1..9067611 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=BP2A.250605.031.A1
+BUILD_ID=BP2A.250605.031.A2