Make change and version bump to RQ2A.201206.001

Change-Id: I495a4f0f6731f08599a7acc5d7ad6eb6f9ce5cff
diff --git a/core/build_id.mk b/core/build_id.mk
index 2e10fab..77911dc 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=RQ2A.201205.001
+BUILD_ID=RQ2A.201206.001