ASoC: fsl_sai: Fix pins setting for i.MX8QM platform

SAI on i.MX8QM platform supports the data lines up to 4. So the pins
setting should be corrected to 4.

Fixes: eba0f00 ("ASoC: fsl_sai: Enable combine mode soft")
Signed-off-by: Chancel Liu <chancel.liu@nxp.com>
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Reviewed-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Link: https://lore.kernel.org/r/20230418094259.4150771-1-chancel.liu@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: Chancel Liu

sound/soc/fsl/fsl_sai.c

@@ -1546,7 +1546,7 @@ static const struct fsl_sai_soc_data fsl_sai_imx8qm_data = {
 	.use_imx_pcm = true,
 	.use_edma = true,
 	.fifo_depth = 64,
-	.pins = 1,
+	.pins = 4,
 	.reg_offset = 0,
 	.mclk0_is_mclk1 = false,
 	.flags = 0,