ASoC: max98504: Add endianness flag in snd_soc_component_driver

The endianness flag is used on the CODEC side to specify an
ambivalence to endian, typically because it is lost over the hardware
link. This device receives audio over a PDM DAI and as such should
have endianness applied.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220504170905.332415-12-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/max98504.c

@@ -291,6 +291,7 @@ static const struct snd_soc_component_driver max98504_component_driver = {
 	.num_dapm_widgets	= ARRAY_SIZE(max98504_dapm_widgets),
 	.dapm_routes		= max98504_dapm_routes,
 	.num_dapm_routes	= ARRAY_SIZE(max98504_dapm_routes),
+	.endianness		= 1,
 };
 
 static const struct regmap_config max98504_regmap = {