Version bump to RP1A.200720.002 [core/build_id.mk]

Change-Id: Id092a987d968d4d0b2ed53820d791c2e9b27c6f6
diff --git a/core/build_id.mk b/core/build_id.mk
index 7f410ab..b4fdbe9 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.200720.001
+BUILD_ID=RP1A.200720.002