!401 Accelerator Live Migration Bugfix

Merge Pull Request from: @xiao_jiang_shui 
 
When using the old PCI_FUNC method to obtain the vf id, if the number
of vf big than 8, the obtained id number will be wrong, and the new
method needs to be used to correct it.

issues：https://gitee.com/openeuler/kernel/issues/I6F3ZE 
 
Link:https://gitee.com/openeuler/kernel/pulls/401

 

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