spi: dln2: Propagate firmware node

Propagate firmware node by using a specific API call, i.e. device_set_node().

Signed-off-by: Andy Shevchenko <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

drivers/spi/spi-dln2.c

···
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/mfd/dln2.h>
 #include <linux/spi/spi.h>
 #include <linux/pm_runtime.h>
···
 	if (!master)
 		return -ENOMEM;
 
+	device_set_node(&master->dev, dev_fwnode(dev));
+
 	platform_set_drvdata(pdev, master);
 
 	dln2 = spi_master_get_devdata(master);
···
 	}
 
 	dln2->master = master;
-	dln2->master->dev.of_node = dev->of_node;
 	dln2->pdev = pdev;
 	dln2->port = pdata->port;
 	/* cs/mode can never be 0xff, so the first transfer will set them */