[PATCH v1 09/12] iommu: Deprecate viommu_alloc op

[Tian, Kevin]

> From: Nicolin Chen <nicolinc at nvidia.com>
> Sent: Tuesday, June 10, 2025 1:14 AM
> 
> Now, iommufd uses the get_viommu_size and viommu_init ops instead.
> 
> Remove the iommu_alloc op and all the drivers implementaitons.
> 
> Signed-off-by: Nicolin Chen <nicolinc at nvidia.com>

Reviewed-by: Kevin Tian <kevin.tian at intel.com>