ASoC: sam9g20_wm8731: Use dev_err_probe() for snd_soc_register_card()

Log the error code when snd_soc_regster_card() fails, but fold in the
silencing of deferred probe errors.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20220506130349.451452-1-broonie@kernel.org

sound/soc/atmel/sam9g20_wm8731.c

@@ -171,7 +171,8 @@ static int at91sam9g20ek_audio_probe(struct platform_device *pdev)
 
 	ret = snd_soc_register_card(card);
 	if (ret) {
-		dev_err(&pdev->dev, "snd_soc_register_card() failed\n");
+		dev_err_probe(&pdev->dev, ret,
+			      "snd_soc_register_card() failed: %d\n", ret);
 		goto err;
 	}