Version bump to OPM2.171019.027

Change-Id: Id9d7e1ac22e8004a97d247ea1fdc671cb3c69e7e
diff --git a/core/build_id.mk b/core/build_id.mk
index 3d8d3bf..f3446db 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=OPM2.171019.026
+export BUILD_ID=OPM2.171019.027