Sound Control: add line gain to cached and register lock

bump version to 3.6

Signed-off-by: Paul Reioux <reioux@gmail.com>
Revert "defconfig: add smartassv2"

This reverts commit 52be6db43e130af1e28600283743ca478051585b.
Revert "cpu: add smartassv2"

This reverts commit 3c4c816564eefbe914c928547457520770e38098.