Move request_irq to the end of rk_iommu_probe().
Suggested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>