serial: zynq: Use live-tree functions

Use live-tree functions.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

drivers/serial/serial_zynq.c

@@ -175,7 +175,9 @@ static int zynq_serial_ofdata_to_platdata(struct udevice *dev)
 {
 	struct zynq_uart_priv *priv = dev_get_priv(dev);
 
-	priv->regs = (struct uart_zynq *)devfdt_get_addr(dev);
+	priv->regs = (struct uart_zynq *)dev_read_addr(dev);
+	if (IS_ERR(priv->regs))
+		return PTR_ERR(priv->regs);
 
 	return 0;
 }