!1297 iommu/iova: move IOVA_MAX_GLOBAL_MAGS outside of IOMMU_SUPPORT

Merge Pull Request from: @ci-robot 
 
PR sync from: Zhang Zekun <zhangzekun11@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/62KOPQGPH57KOUCLU3BZ6ECRRXYWU4HB/ 
 
 
Link:https://gitee.com/openeuler/kernel/pulls/1297

 

Reviewed-by: Weilong Chen <chenweilong@huawei.com>
Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>