iommu/smmuv3: Remove the S1 mapping restriction of dirty log

virt inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4WK5B


CVE: NA

------------------------------

The previous patch extended dirty log feature for SMMUv3 nested mode,
but forget to remove the S1 mapping restriction.

Fixes: 97e11307 (iommu/arm-smmu-v3: Using HTTU with SMMU STE and stage 2 TTD)
Signed-off-by: Keqian Zhu <zhukeqian1@huawei.com>
Tested-by: Kunkun Jiang <jiangkunkun@huawei.com>
Reviewed-by: Kunkun Jiang <jiangkunkun@huawei.com>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>