base

Fix speakerphone routing to analog dock

The audio routing policy when speakerphone is on and a dock with built-in
speakers is connected should be to output audio to teh dock speakers

Also removed route to SCO car kit if forced usage is not SCO as the SCO
socket might not be established.

Change-Id: I1aa2954092e28de935304b90f7a7a64d661934c7