Enable IOMMUFD features for ARM SMMUv3 (EXPERIMENTAL)

configname: CONFIG_ARM_SMMU_V3_IOMMUFD

Linux Kernel Configuration
└─>Device Drivers
└─>IOMMU Hardware Support
└─>Enable IOMMUFD features for ARM SMMUv3 (EXPERIMENTAL)
In linux kernel since version 6.13 (release Date: 2025-01-19)
Support for IOMMUFD features intended to support virtual machines
with accelerated virtual IOMMUs.

Say Y here if you are doing development and testing on this feature.