Support custom vibration in haptic-only mode

With CL[1], Ringtone start to support the custom
vibration play. If the device is in vibrate-only
mode, the Ringer returns the ringtone Uri as audible
flow so Ringtone can use it for Vibration support.

[1]: I8fc4f49e3801caec1dc2b0b611dd5b3854c6395f

Flag: android.media.audio.enable_ringtone_haptics_customization
Bug: 358523092
Test: atest RingerTest
Change-Id: Ia178df833dfafd8d4da49d0ed90c0d740e5d3108