Set route to speaker before changing audio mode to AUDIO_MODE_IN_CALL.
Some devices don't get routing right if the route is something else
(like AUDIO_DEVICE_OUT_WIRED_HEADSET) before calling set_mode().
[common] Add quirk speaker_before_voice. JB#53992
Some devices don't like to receive set_parameters() call while they
are in write(), even if it seems the mutexes are correctly in place.
Standby is another synchronization point which seems to work better.
[common] Add quirk standby_set_route. JB#53992
