watchdog: tangox: Print info message using pointer to platform device

The device pointer in struct watchdog_device should not be used by drivers
and may be removed in the near future. Use the platform device pointer for
info messages instead.

Signed-off-by: Guenter Roeck <[e-mail]>
Signed-off-by: Wim Van Sebroeck <[e-mail]>

drivers/watchdog/tangox_wdt.c

···
 	if (err)
 		dev_warn(&pdev->dev, "failed to register restart handler\n");
 
-	dev_info(dev->wdt.dev, "SMP86xx/SMP87xx watchdog registered\n");
+	dev_info(&pdev->dev, "SMP86xx/SMP87xx watchdog registered\n");
 
 	return 0;
 }