u2-common: add support for LG-P769

Change-Id: I5b225f220b83e278365dc45b36b28684fb731b14
ril: don't handle call routing

Let the Audio HAL take care of the Call Routing. Messing
with the RIL CPATH could cause inconsistent mixer states
and results in loss of audio after call.

Change-Id: I7b309d299355a40934c4b804fb3a57036ec67fc6
bluetooth: fix SCO PCM mode for Bluetooth Call Audio

Change-Id: I76d45c113012b6b0fc0b7ad81d7deaf4d52f7773
audio: don't use low power PCM port

Change-Id: I4b3f96e9589389cdc4405be64745982ebbd81f17
configs: remove duplicate audio_policy.conf

Change-Id: Ie7c601f6747b7b5ce0e74b576e9fc0a2e896bfb3
overlay: remove Phone overlay

Change-Id: I868d49b9533dcd9395f829d16b7d91e11ccb7fb7