Version bump to RP1A.191219.002 [core/build_id.mk]

Change-Id: I959138c0bc20c96d065bfb0a0ae1d4f3bd3d2e64
diff --git a/core/build_id.mk b/core/build_id.mk
index 20fbd0c..2dc4136 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.191219.001
+BUILD_ID=RP1A.191219.002