ASoC: ti: sync parameter naming (rate/sample_bits)

This patch syncs naming rule.

 - xxx_rates;
 + xxx_rate;

 - xxx_samplebits;
 + xxx_sample_bits;
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87im7yolhk.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/ti/davinci-mcasp.c

@@ -1641,7 +1641,7 @@ static struct snd_soc_dai_driver davinci_mcasp_dai[] = {
 		},
 		.ops 		= &davinci_mcasp_dai_ops,
 
-		.symmetric_rates	= 1,
+		.symmetric_rate		= 1,
 	},
 	{
 		.name		= "davinci-mcasp.1",