Add ability to manually specify the AMDVI-PCI device

John Allenrequested to merge
johnalle/qemu-kvm-fork:85649 into c10s

JIRA: https://issues.redhat.com/browse/RHEL-85649

Includes the upstream series allowing migration with the amd-iommu device by explicitly creating the AMDVI-PCI device seen here: https://lore.kernel.org/all/20250504170405.12623-1-suravee.suthikulpanit@amd.com/

This allows for enabling the amd-iommu device.

Signed-off-by: John Allen johnalle@redhat.com

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