usb: ehci: Make usage of generic_{setup,shutdown}_phy() helpers

Replace ehci_setup_phy() and ehci_shutdown_phy () by respectively
generic_setup_phy() and generic_shutdown_phy().

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>
diff --git a/drivers/usb/host/ehci-generic.c b/drivers/usb/host/ehci-generic.c
index 75c73bf..a765a30 100644
--- a/drivers/usb/host/ehci-generic.c
+++ b/drivers/usb/host/ehci-generic.c
@@ -96,7 +96,7 @@
 	if (err)
 		goto reset_err;
 
-	err = ehci_setup_phy(dev, &priv->phy, 0);
+	err = generic_setup_phy(dev, &priv->phy, 0);
 	if (err)
 		goto regulator_err;
 
@@ -111,7 +111,7 @@
 	return 0;
 
 phy_err:
-	ret = ehci_shutdown_phy(dev, &priv->phy);
+	ret = generic_shutdown_phy(&priv->phy);
 	if (ret)
 		dev_err(dev, "failed to shutdown usb phy (ret=%d)\n", ret);
 
@@ -141,7 +141,7 @@
 	if (ret)
 		return ret;
 
-	ret = ehci_shutdown_phy(dev, &priv->phy);
+	ret = generic_shutdown_phy(&priv->phy);
 	if (ret)
 		return ret;