phy: sunplus: return negative error code in sp_usb_phy_probe

devm_phy_create() return negative error code, 'ret' should be
'PTR_ERR(phy)' rather than '-PTR_ERR(phy)'.

Fixes: 99d9ccd ("phy: usb: Add USB2.0 phy driver for Sunplus SP7021")
Signed-off-by: Su Hui <suhui@nfschina.com>
Link: https://lore.kernel.org/r/20231120091046.163781-1-suhui@nfschina.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Author: Su Hui

drivers/phy/sunplus/phy-sunplus-usb2.c

@@ -275,7 +275,7 @@ static int sp_usb_phy_probe(struct platform_device *pdev)
 
 	phy = devm_phy_create(&pdev->dev, NULL, &sp_uphy_ops);
 	if (IS_ERR(phy)) {
-		ret = -PTR_ERR(phy);
+		ret = PTR_ERR(phy);
 		return ret;
 	}