Sound Control: add line gain to cached and register lock

bump version to 3.6

Signed-off-by: Paul Reioux <reioux@gmail.com>
intelli-thermal v2: initial adaptation

Intellithermal 2.0 is based on the latest Qualcomm thermal driver adapted for
in-kernel use and control.  Newer MSM8974+ chipsets should use this driver
going forward

Signed-off-by: Paul Reioux <reioux@gmail.com>
defconfig: Update Intellithermal to V2