ASoC: samsung: Extend snow driver to support MAX98091

Peach-pi board has MAX98091 CODEC. Extend snow machine driver to support
this board.

Signed-off-by: Tushar Behera <tushar.b@samsung.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@linaro.org>

Documentation/devicetree/bindings/sound/snow.txt

@@ -3,6 +3,7 @@ Audio Binding for Snow boards
 Required properties:
 - compatible : Can be one of the following,
 			"google,snow-audio-max98090" or
+			"google,snow-audio-max98091" or
 			"google,snow-audio-max98095"
 - samsung,i2s-controller: The phandle of the Samsung I2S controller
 - samsung,audio-codec: The phandle of the audio codec

sound/soc/samsung/snow.c

@@ -103,6 +103,7 @@ static int snow_probe(struct platform_device *pdev)
 
 static const struct of_device_id snow_of_match[] = {
 	{ .compatible = "google,snow-audio-max98090", },
+	{ .compatible = "google,snow-audio-max98091", },
 	{ .compatible = "google,snow-audio-max98095", },
 	{},
 };