USB: core: update comment to match current function name

Found while debugging a USB problem and trying to find the mentioned function.
Signed-off-by: NWolfram Sang <w.sang@pengutronix.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/core/hub.c

@@ -3629,7 +3629,7 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
 	}
 
 	if (!parent_hdev) {
-		/* this requires hcd-specific logic; see OHCI hc_restart() */
+		/* this requires hcd-specific logic; see ohci_restart() */
 		dev_dbg(&udev->dev, "%s for root hub!\n", __func__);
 		return -EISDIR;
 	}