Merge "iommu: io-pgtable-arm: Fix arm_lpae_split_blk_unmap cornercase" into msm-4.8

	blk_start = iova & ~(blk_size - 1);

	blk_end = blk_start + blk_size;

	blk_paddr = iopte_to_pfn(*ptep, data) << data->pg_shift;

	size = ARM_LPAE_BLOCK_SIZE(lvl + 1, data);

	size = iommu_pgsize(data->iop.cfg.pgsize_bitmap, iova, size);

	for (; blk_start < blk_end; blk_start += size, blk_paddr += size) {

		arm_lpae_iopte *tablep;