gpu: ipu-v3: Stop overwriting pdev->dev.of_node of child devices

Setting dev->of_node changes the modalias and breaks module autoloading.
Since there is an of_node field in the platform data passed to child
devices, we don't even need this anymore.

Suggested-by: Russell King <[e-mail]>
Signed-off-by: Philipp Zabel <[e-mail]>

drivers/gpu/ipu-v3/ipu-common.c

···
 			platform_device_put(pdev);
 			goto err_register;
 		}
-
-		/*
-		 * Set of_node only after calling platform_device_add. Otherwise
-		 * the platform:imx-ipuv3-crtc modalias won't be used.
-		 */
-		pdev->dev.of_node = of_node;
 	}
 
 	return 0;