Version bump to RT11.211110.001.A1 [core/build_id.mk]

Change-Id: I9796295e1ef7437a25a5fd1409e106171748c8d0
diff --git a/core/build_id.mk b/core/build_id.mk
index d10ffe6..cd8fc94 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=RT11.211110.001
+BUILD_ID=RT11.211110.001.A1