mmc: sdhci-of-arasan: Do now show error message in case of deffered probe

When mmc-pwrseq property is passed mmc_pwrseq_alloc() can return
-EPROBE_DEFER because driver for power sequence provider is not probed
yet. Do not show error message when this situation happens.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci-of-arasan.c

@@ -788,6 +788,7 @@ static int sdhci_arasan_probe(struct platform_device *pdev)
 
 	ret = mmc_of_parse(host->mmc);
 	if (ret) {
+		if (ret != -EPROBE_DEFER)
 			dev_err(&pdev->dev, "parsing dt failed (%d)\n", ret);
 		goto unreg_clk;
 	}