phy: Wire return value from phy_config()

Fix zynq_gem driver to handle error from phy_config correctly.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

drivers/net/phy/phy.c

@@ -879,9 +879,7 @@ __weak int board_phy_config(struct phy_device *phydev)
 int phy_config(struct phy_device *phydev)
 {
 	/* Invoke an optional board-specific helper */
-	board_phy_config(phydev);
-
-	return 0;
+	return board_phy_config(phydev);
 }
 
 int phy_shutdown(struct phy_device *phydev)

drivers/net/zynq_gem.c

@@ -352,9 +352,8 @@ static int zynq_phy_init(struct udevice *dev)
 	priv->phydev->supported = supported | ADVERTISED_Pause |
 				  ADVERTISED_Asym_Pause;
 	priv->phydev->advertising = priv->phydev->supported;
-	phy_config(priv->phydev);
 
-	return 0;
+	return phy_config(priv->phydev);
 }
 
 static int zynq_gem_init(struct udevice *dev)