incall volume and mute fix
Merge pull request #4 from mickybart/aosp-4.4

incall volume and mute fix
Merge https://github.com/AOSPXS/aosp_device_sony_nozomi into aospxs-4.4
Merge branch 'aospxs-4.4' of https://github.com/dmcoles/aosp_device_sony_nozomi into aospxs-4.4