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 a787e5400a1ce ("driver core: add device probe log helper")

Signed-off-by: Akhilesh Patil <[e-mail]>
Cc: Andrzej Hajda <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Vinod Koul <[e-mail]>

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

···
 	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);