phy: ingenic: use core driver model helper to handle probe errors

Use core driver model helper dev_err_probe() defined at
drivers/base/core.c in driver probe path to propagate errors.
standardize and improve the code of deferred probe error handling
using this helper for ingenic usb phy driver.
Inspired by,
commit a787e54 ("driver core: add device probe log helper")

Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Link: https://lore.kernel.org/r/aIIMW971BYsIk4As@bhairav-test.ee.iitb.ac.in
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Author: Akhilesh Patil

drivers/phy/ingenic/phy-ingenic-usb.c

@@ -339,17 +339,13 @@ static int ingenic_usb_phy_probe(struct platform_device *pdev)
 	priv->clk = devm_clk_get(dev, NULL);
 	if (IS_ERR(priv->clk)) {
 		err = PTR_ERR(priv->clk);
-		if (err != -EPROBE_DEFER)
-			dev_err(dev, "Failed to get clock\n");
-		return err;
+		return dev_err_probe(dev, err, "Failed to get clock\n");
 	}
 
 	priv->vcc_supply = devm_regulator_get(dev, "vcc");
 	if (IS_ERR(priv->vcc_supply)) {
 		err = PTR_ERR(priv->vcc_supply);
-		if (err != -EPROBE_DEFER)
-			dev_err(dev, "Failed to get regulator\n");
-		return err;
+		return dev_err_probe(dev, err, "Failed to get regulator\n");
 	}
 
 	priv->phy = devm_phy_create(dev, NULL, &ingenic_usb_phy_ops);