Add magjed@ as owner for talk/app/webrtc/androidtests/ and talk/app/webrtc/java/jni/

magjed@ has done a lot of work in these folders.

R=tommi@webrtc.org

Review URL: https://codereview.webrtc.org/1314123004 .

Cr-Commit-Position: refs/heads/master@{#9896}
2 files changed