Revert "klte-common: update mixer_paths.xml"

This reverts commit 0f51d96b8c75ff77fae604f5227868843443bb8c.

(cherry picked from commit 173bd740a488b67d828221cda4b9e028edee31ee)

Conflicts:
	audio/mixer_paths.xml
klte-common: update gain for mixer path vr-main-mic to match stock

* recordings with the Voice Recorder app were very low, increase to
match that of stock.

Change-Id: Ia0d036e5c8bad00a8ae99e93b4ce8a60cddb34e1
(cherry picked from commit c384d198e669ac5a03d034bf220f23fb15fe3bce)
klte-common: add 3rd mic to audio policy

Change-Id: Iea686ed53a08b8346c7b3617e151f03fee36edd5
(cherry picked from commit 3eb3a19b026269d0aa333aebffdf60ced77a58b7)
klte-common: set voice wakeup to 1

Change-Id: I0c29011d763342b2a13c5358767a49149d0749df
(cherry picked from commit 5c2b77218cce65643369f8079b4ef6851941428d)