Update OWNERS file

Test: Manual
Change-Id: I3ca8fe36325379f53d37168013cb2bf2aa3d2956
diff --git a/OWNERS b/OWNERS
index 7e68aea..6f90d48 100644
--- a/OWNERS
+++ b/OWNERS
@@ -5,3 +5,4 @@
 rgreenwalt@google.com
 pmadapurmath@google.com
 grantmenke@google.com
+huiwang@google.com