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
Merge remote-tracking branch 'cm/cm-11.0' into HEAD

Conflicts:
	configs/mixer_paths.xml

Change-Id: I2ae782d643120d54a9e7c5585c7a876c442f2923