ASoC: tas2562: Return invalid for when bitwidth is invalid

If the bitwidth passed in to the set_bitwidth function is not supported
then return an error.

Fixes: 29b74236bd57 ("ASoC: tas2562: Introduce the TAS2562 amplifier")
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200218185252.26290-1-dmurphy@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/tas2562.c

@@ -215,7 +215,8 @@ static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
 		break;
 
 	default:
-		dev_info(tas2562->dev, "Not supported params format\n");
+		dev_info(tas2562->dev, "Unsupported bitwidth format\n");
+		return -EINVAL;
 	}
 
 	ret = snd_soc_component_update_bits(tas2562->component,