usb: dwc3: core: use pm_runtime_put_sync() on remove

We are going to disable runtime_pm and we're
removing the driver, we must disable the device
now.
Signed-off-by: NFelipe Balbi <balbi@ti.com>

drivers/usb/dwc3/core.c

@@ -584,7 +584,7 @@ static int dwc3_remove(struct platform_device *pdev)
 	usb_phy_set_suspend(dwc->usb2_phy, 1);
 	usb_phy_set_suspend(dwc->usb3_phy, 1);
 
-	pm_runtime_put(&pdev->dev);
+	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 
 	dwc3_debugfs_exit(dwc);