This patch registers the [FEE0_0000h - FEF0_000h] 1MB MSI
range as a reserved region and RMRR regions as direct regions.

This will allow to report those reserved regions in the
iommu-group sysfs.
Signed-off-by: NEric Auger <eric.auger@redhat.com>
Signed-off-by: NWill Deacon <will.deacon@arm.com>