Add dwkang to OWNERS

Test: n/a

Change-Id: I98245fe411295b6112cdc73a13baf2ac70edeb9d
diff --git a/media/OWNERS b/media/OWNERS
index 1ae2a7b..0abf9ae 100644
--- a/media/OWNERS
+++ b/media/OWNERS
@@ -9,4 +9,4 @@
 wjia@google.com
 jaewan@google.com
 chz@google.com
-
+dwkang@google.com