drm/sprd: Make use of the helper component_compare_of

Use the common compare helper from component.

Cc: Orson Zhai <[e-mail]>
Cc: Baolin Wang <[e-mail]>
Cc: Chunyan Zhang <[e-mail]>
Cc: Kevin Tang <[e-mail]>
Cc: Maarten Lankhorst <[e-mail]>
Cc: Maxime Ripard <[e-mail]>
Signed-off-by: Yong Wu <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/gpu/drm/sprd/sprd_drm.c

···
 	.unbind = sprd_drm_unbind,
 };
 
-static int compare_of(struct device *dev, void *data)
-{
-	return dev->of_node == data;
-}
-
 static int sprd_drm_probe(struct platform_device *pdev)
 {
-	return drm_of_component_probe(&pdev->dev, compare_of, &drm_component_ops);
+	return drm_of_component_probe(&pdev->dev, component_compare_of, &drm_component_ops);
 }
 
 static int sprd_drm_remove(struct platform_device *pdev)