iommu/arm-smmu-v3: Support 52-bit virtual address
Stage 1 input addresses are effectively 64-bit in SMMUv3 anyway, so really all that's involved is letting io-pgtable know the appropriate upper bound for T0SZ. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
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