Make change and version bump to PPR2.181005.003.A1

Change-Id: I8af61bb29c16822a501ed2c6934ce6ab65b503f2
diff --git a/core/build_id.mk b/core/build_id.mk
index 0d9c215..e4ec114 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.
 
-export BUILD_ID=PPR2.181005.003
+export BUILD_ID=PPR2.181005.003.A1