ASoC: fsl_spdif: don't print EPROBE_DEFER as error

Probe deferral is to be expected during normal operation, so avoid
printing an error when it is encountered.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/fsl/fsl_spdif.c

@@ -1320,7 +1320,7 @@ static int fsl_spdif_probe(struct platform_device *pdev)
 	}
 
 	ret = imx_pcm_dma_init(pdev, IMX_SPDIF_DMABUF_SIZE);
-	if (ret)
+	if (ret && ret != -EPROBE_DEFER)
 		dev_err(&pdev->dev, "imx_pcm_dma_init failed: %d\n", ret);
 
 	return ret;