ASoC: tlv320aic3x: Remove mono support

Playing a mono stream on the TLV320AIC3x results in too fast playback rate.

Remove mono support so that mono streams can be played correctly on this codec.

Tested with imx-ssi (i.MX25) and TLV320AIC3104.
Signed-off-by: NBenoît Thébaudeau <benoit.thebaudeau@advansee.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/tlv320aic3x.c

@@ -1210,13 +1210,13 @@ static struct snd_soc_dai_driver aic3x_dai = {
 	.name = "tlv320aic3x-hifi",
 	.playback = {
 		.stream_name = "Playback",
-		.channels_min = 1,
+		.channels_min = 2,
 		.channels_max = 2,
 		.rates = AIC3X_RATES,
 		.formats = AIC3X_FORMATS,},
 	.capture = {
 		.stream_name = "Capture",
-		.channels_min = 1,
+		.channels_min = 2,
 		.channels_max = 2,
 		.rates = AIC3X_RATES,
 		.formats = AIC3X_FORMATS,},