iommu/amd: Remove DMA_FQ type from domain allocation path

.. as drivers won't see DMA_FQ any more.

See commit a4fdd976 ("iommu: Use flush queue capability") for
details.

Suggested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20231016051305.13091-1-vasant.hegde@amd.com


Signed-off-by: Joerg Roedel <jroedel@suse.de>