iommu/arm-smmu-v3: Add a SYNC command to avoid broken page table prefetch

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I8MVBZ


CVE: NA

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On Hisilicon LINXICORE9100 cores, SMMU pagetable prefetch features may
prefetch and use a invalid PTE even the PTE is valid at that time. This
will cause the device trigger fake pagefaults. If the SMMU works in
terminate mode, transactions which occur fake pagefaults will be aborted,
and could result in unexpected errors.

To fix this problem, we need to add a SYNC command after smmu has map a
iova, then smmu will always try to get the newest PTE.

Signed-off-by: Zhang Zekun <zhangzekun11@huawei.com>