iommu: support phytium ft2000plus and S2500 iommu function

phytium inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I41AUQ



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To fix iommu issue of device access in virtualization scenario
for ft2000plus and S2500.

Convert to new cputype macros naming of phytium.

Signed-off-by: Mao HongBo <maohongbo@phytium.com.cn>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>