spi: lpspi: Silence error message upon deferred probe

Do not print error messages with error code -517. Silences the following
errors upon on imx8qm:
fsl_lpspi 5a000000.spi: spi_register_controller error: -517
fsl_lpspi 5a010000.spi: spi_register_controller error: -517
fsl_lpspi 5a020000.spi: spi_register_controller error: -517

Signed-off-by: Alexander Stein <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

drivers/spi/spi-fsl-lpspi.c

···
 
 	ret = devm_spi_register_controller(&pdev->dev, controller);
 	if (ret < 0) {
-		dev_err(&pdev->dev, "spi_register_controller error.\n");
+		dev_err_probe(&pdev->dev, ret, "spi_register_controller error: %i\n", ret);
 		goto out_pm_get;
 	}