!332 [5.10]Make Multiple functions On Netswift PCIE NIC belong to different IOMMU group

Merge Pull Request from: @duanqiangwen 
 
This PR is to workaround if multiple functions on a Beijing Wangxun PCl device belong to the same lOMMU group,
    they can be directly assigned to only one VM as well, letting multiple functions
    belong to different IOMMU group.

Issue：https://gitee.com/openeuler/kernel/issues/I66W4Y

Hardware List:
Netswift All Nic, PCI vendor ID 0x8088

Net-Swift Official Website:
https://www.net-swift.com 
 
Link:https://gitee.com/openeuler/kernel/pulls/332

 

Reviewed-by: Jialin Zhang <zhangjialin11@huawei.com>
Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>