Add configuration option for performance mode

Performance mode tells the framework how to configure the audio path
for a player or recorder according to application performance and
functional requirements.
It affects the output or input latency based on acceptable tradeoffs on
battery drain and use of pre or post processing effects.

Bug: 20825626
Bug: 17981873

Change-Id: I0e79cf2da03b4bfa2080fe6d4ea9d8753ffe3497