audio: add set_parameters for listen hal

Add listen hal specific set parameters function so that Listen
service can call Listen hal directly, by passing audio hal. This
is needed since set_parameters call in audio hal does not guarantee the
correct return value is returned for any parameters set.

Conflicts:
	include/hardware/audio.h

Change-Id: I647b9e7f841c8157e4eb597655166ea863a00925
1 file changed