fix(arch/aarch64/iommu): make IOMMU initialization conditional #215
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This commit resolves the issue #212 by wrapping the SMMUv3 initialization logic in a
#[cfg(feature = "iommu")]attribute. A corresponding emptyiommu_initfunction is provided under#[cfg(not(feature = "iommu"))].This change allows the hypervisor to be compiled without IOMMU support, enabling it to boot successfully on affected hardware by disabling the default feature.
Fixes: #212