[OWNER] Add haowei to owner list

This change adds haowei to owner list for goma related changes.

Change-Id: I4557c7fca6c03fd1bb651263a6fe98e64f7427aa
Reviewed-on: https://fuchsia-review.googlesource.com/c/infra/config/+/404911
Reviewed-by: Nathan Mulcahey <nmulcahey@google.com>
diff --git a/OWNERS b/OWNERS
index 4c33727..c9aaa45 100644
--- a/OWNERS
+++ b/OWNERS
@@ -5,3 +5,4 @@
 joshuaseaton@google.com
 kjharland@google.com
 nmulcahey@google.com
+haowei@google.com