RingtoneManager: allow video ringtone URI

When checking the MIME type for the default ringtone, also
allow it to refer to video content.

Bug: 205837340
Test: see POC + atest android.media.audio.cts.RingtoneManagerTest
Change-Id: Id9b81e2db8314bc16df77d0a9221ce93143a8012
2 files changed