ASoC: max98357a: add compatible string for MAX98360A

Maxim MAX98360A audio amplifier is functionally identical to MAX98357A.
Adds compatible string "maxim,max98360a" for driver reuse.
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20200605034931.107713-2-tzungbi@google.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/max98357a.c

@@ -125,6 +125,7 @@ static int max98357a_platform_probe(struct platform_device *pdev)
 #ifdef CONFIG_OF
 static const struct of_device_id max98357a_device_id[] = {
 	{ .compatible = "maxim,max98357a" },
+	{ .compatible = "maxim,max98360a" },
 	{}
 };
 MODULE_DEVICE_TABLE(of, max98357a_device_id);