Add nchalko@ and quxiangfang@ to media OWNERS

Nick is TLM and Henry is the TL of the media TV team,
the owner of TV input framework, tuner framework, MediaCas, etc.

Test: mmm
Change-Id: I8f21dca82fe66245ab1e5beed60652492b64bcc8
diff --git a/media/OWNERS b/media/OWNERS
index bd83ad9..3e194f0 100644
--- a/media/OWNERS
+++ b/media/OWNERS
@@ -11,9 +11,11 @@
 lajos@google.com
 marcone@google.com
 mnaganov@google.com
+nchalko@google.com
 pawin@google.com
 philburk@google.com
 pmclean@google.com
+quxiangfang@google.com
 rachad@google.com
 rago@google.com
 robertshih@google.com