enable autobrightness by default

Change-Id: I5065a40ff47b5a42a3d137d981c75fda6ea0df93
Enable perflocks from power HAL

Change-Id: Ie710023d0ac258b5450f7764483c5ad732dfbe09
Adjust speaker volumes and add hp filter

Get rid of high-freq distortion at loud volumes, and bump
the in-call speaker values a bit

Change-Id: If63cd384c67efeaa60f5f07f98213c128b853a94