ASoC: ak4642: fixup channels_min

ak4642 doesn't have Mono record, ak4643 have it, but not supported.
This patch fixes channel mismatch

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/ak4642.c

@@ -468,13 +468,13 @@ static struct snd_soc_dai_driver ak4642_dai = {
 	.name = "ak4642-hifi",
 	.playback = {
 		.stream_name = "Playback",
-		.channels_min = 1,
+		.channels_min = 2,
 		.channels_max = 2,
 		.rates = SNDRV_PCM_RATE_8000_48000,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE },
 	.capture = {
 		.stream_name = "Capture",
-		.channels_min = 1,
+		.channels_min = 2,
 		.channels_max = 2,
 		.rates = SNDRV_PCM_RATE_8000_48000,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE },