Version bump to BP1A.241210.020 [core/build_id.mk]

Change-Id: Ieb93781e1d6bc3de5c3a60f25033d793bda7faf7
diff --git a/core/build_id.mk b/core/build_id.mk
index f8a223e..b4cc946 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=BP1A.241210.019
+BUILD_ID=BP1A.241210.020