DO NOT MERGE  Designate udc-dev* branches as UDC. am: 21b113cb7e

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/+/24816359

Change-Id: I315b6de050d890159f4c8a3d1984024ec6b8f0c2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/core/build_id.mk b/core/build_id.mk
index 2f9c3f3..8a68056 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=MASTER
+BUILD_ID=UDC