Fix common_video_unittests in apk_tests.gyp.

r5265 moved common_video_unittests to its own gyp, this required an
update of apk_tests.gyp that wasn't caught by our trybots.

TBR=mflodman@webrtc.org
BUG=

Review URL: https://webrtc-codereview.appspot.com/5629004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5266 4adac7df-926f-26a2-2b94-8c16560cd09d
1 file changed