usb: phy: samsung: Fix an error message typo

The error message is common to both clk_get functions. Update it
accordingly.

Signed-off-by: Sachin Kamat <[e-mail]>
Signed-off-by: Felipe Balbi <[e-mail]>

drivers/usb/phy/phy-samsung-usb2.c

···
 		clk = devm_clk_get(dev, "otg");
 
 	if (IS_ERR(clk)) {
-		dev_err(dev, "Failed to get otg clock\n");
+		dev_err(dev, "Failed to get usbhost/otg clock\n");
 		return PTR_ERR(clk);
 	}