Add Knock off and on gesture control

Change-Id: Ia5ab10b5e4a062918e1b8bfdf99cd19bfbfa63cf

Conflicts:
	init.g2.rc
Replace gesture app with cmhw class for tap-to-wake

Change-Id: I7ed61bb735a090176b235c2a9c7c69d7a9bc11d9
Revert "Adjust speaker volumes and add hp filter"

This reverts commit 333b19aa7abce6531d50b6a83a817b1959e99b85.

Conflicts:
	configs/mixer_paths.xml

Change-Id: Ie53ff803990d69d34818eb700568b40f1d480e4e