!777 update patches for sw64 architecture

Merge Pull Request from: @guzitao 
 
These patches generally cover the following tasks:

1.optimize kernel cores, remove unused codes, fix compile errors
2.fixes for perf, iommu, kvm, cpufreq, efi, struct pt_regs
3.add support, add support for restartable sequences, trace user task unalignment, add libbfd support in perf
4.optimize DIV and MOD instructions for bpf 
 
Link:https://gitee.com/openeuler/kernel/pulls/777

 

Reviewed-by: Jialin Zhang <zhangjialin11@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>
Acked-by: Xie XiuQi <xiexiuqi@huawei.com>