update OWNERS for vts related projects
am: c0e744742b

Change-Id: I3d789b7a05b9d5999f640846508a7cfc40cf50a2
diff --git a/OWNERS b/OWNERS
index 2f35d7f..b9d65ac 100644
--- a/OWNERS
+++ b/OWNERS
@@ -2,3 +2,4 @@
 wwtbuaa@google.com
 yim@google.com
 yuexima@google.com
+guangzhu@google.com