serial: vt8500: Use of_device_get_match_data

Retrieve OF match data, it's better and cleaner to use
'of_device_get_match_data' over 'of_match_device'.

Signed-off-by: Zhang Shengju <[e-mail]>
Signed-off-by: Tang Bin <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/tty/serial/vt8500_serial.c

···
 	struct vt8500_port *vt8500_port;
 	struct resource *mmres, *irqres;
 	struct device_node *np = pdev->dev.of_node;
-	const struct of_device_id *match;
 	const unsigned int *flags;
 	int ret;
 	int port;
 
-	match = of_match_device(wmt_dt_ids, &pdev->dev);
-	if (!match)
+	flags = of_device_get_match_data(&pdev->dev);
+	if (!flags)
 		return -EINVAL;
-
-	flags = match->data;
 
 	mmres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	irqres = platform_get_resource(pdev, IORESOURCE_IRQ, 0);