ASoC: max9867: add digital microphone controls

MAX9867 codec has a possibility of connecting digital microphones.
Add DAPM controls to be able to enable them.

Signed-off-by: Pavel Dobias <dobias@2n.cz>
Link: https://lore.kernel.org/r/20200522142957.18364-2-dobias@2n.cz
Signed-off-by: Mark Brown <broonie@kernel.org>
1 file changed