usb: dwc3: Remove the checks of -ENOSYS

Commit 57303488cd37d ("usb: dwc3: adapt dwc3 core to use Generic PHY
Framework") added if statements that check 'ret == -ENOSYS || ret ==
-ENODEV', but the function phy_get() which is called by devm_phy_get()
returns the phy driver or -ENODEV if the phy driver was not found. So,
remove the check of -ENOSYS in the if statements.

Signed-off-by: Kushagra Verma <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/dwc3/core.c

···
 	dwc->usb2_generic_phy = devm_phy_get(dev, "usb2-phy");
 	if (IS_ERR(dwc->usb2_generic_phy)) {
 		ret = PTR_ERR(dwc->usb2_generic_phy);
-		if (ret == -ENOSYS || ret == -ENODEV)
+		if (ret == -ENODEV)
 			dwc->usb2_generic_phy = NULL;
 		else
 			return dev_err_probe(dev, ret, "no usb2 phy configured\n");
···
 	dwc->usb3_generic_phy = devm_phy_get(dev, "usb3-phy");
 	if (IS_ERR(dwc->usb3_generic_phy)) {
 		ret = PTR_ERR(dwc->usb3_generic_phy);
-		if (ret == -ENOSYS || ret == -ENODEV)
+		if (ret == -ENODEV)
 			dwc->usb3_generic_phy = NULL;
 		else
 			return dev_err_probe(dev, ret, "no usb3 phy configured\n");