iommu/of: Use device_iommu_mapped()

Use Use device_iommu_mapped() to check if the device is
already mapped by an IOMMU.

Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Joerg Roedel 2018-11-30 14:29:01 +01:00
commit 170ecbd5ff