i3c: master: Use dev_to_i3cmaster()

Since we have dev_to_i3cmaster() available, use it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>

drivers/i3c/master.c

@@ -123,7 +123,7 @@ static struct i3c_dev_desc *dev_to_i3cdesc(struct device *dev)
 	if (dev->type == &i3c_device_type)
 		return dev_to_i3cdev(dev)->desc;
 
-	master = container_of(dev, struct i3c_master_controller, dev);
+	master = dev_to_i3cmaster(dev);
 
 	return master->this;
 }