Version bump to RP1A.191031.003 [core/build_id.mk]

Change-Id: I28723b6d5738644b725f930a6ff8ce70d36ef5c9
diff --git a/core/build_id.mk b/core/build_id.mk
index 37011ad..778a2cf 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=RP1A.191031.002
+BUILD_ID=RP1A.191031.003