ASoC: max98357a: add missing supported rates

According the publicly available datasheet (and some test) the max98357a
also supports 32, 44.1 and 88.2 kHz sample rate.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/max98357a.c

@@ -97,7 +97,10 @@ static struct snd_soc_dai_driver max98357a_dai_driver = {
 					SNDRV_PCM_FMTBIT_S32,
 		.rates		= SNDRV_PCM_RATE_8000 |
 					SNDRV_PCM_RATE_16000 |
+					SNDRV_PCM_RATE_32000 |
+					SNDRV_PCM_RATE_44100 |
 					SNDRV_PCM_RATE_48000 |
+					SNDRV_PCM_RATE_88200 |
 					SNDRV_PCM_RATE_96000,
 		.rate_min	= 8000,
 		.rate_max	= 96000,