usb: chipidea: Set the DT node on the child device

The ChipIdea glue drivers just copy the glue resources to the "ci_hdrc"
child device. Instead, set the child device's DT node pointer to the
parent device's node so that platform_get_irq() can find the IRQ
resources in the DT. This removes the need for statically populating the
IRQ resources from the DT which has been deprecated for some time.

Acked-by: Peter Chen <[e-mail]>
Signed-off-by: Rob Herring <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/chipidea/core.c

···
 	}
 
 	pdev->dev.parent = dev;
+	device_set_of_node_from_dev(&pdev->dev, dev);
 
 	ret = platform_device_add_resources(pdev, res, nres);
 	if (ret)