update OWNERS for VTS

Test: inspection
Bug: 75325573
Change-Id: I130a66d27deee96c6312dd1fa6e468a42b8241e5
diff --git a/OWNERS b/OWNERS
index b893bf2..5c34983 100644
--- a/OWNERS
+++ b/OWNERS
@@ -2,3 +2,4 @@
 maco@google.com
 malchev@google.com
 smoreland@google.com
+yim@google.com # VTS