Version bump to RP1A.200720.007 [core/build_id.mk]

Change-Id: If0ad6d279e844a3cc11eb1e292437338ca2f8e16
diff --git a/core/build_id.mk b/core/build_id.mk
index bd92d5b..6cc16b9 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.200720.006
+BUILD_ID=RP1A.200720.007