Make change and version bump to OPM2.171019.029.B1

Change-Id: I1792b423a37a3332d04aea889db7574fc1fa5000
diff --git a/core/build_id.mk b/core/build_id.mk
index 8750b1e..125773a 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.
 
-export BUILD_ID=OPM2.171019.029
+export BUILD_ID=OPM2.171019.029.B1