!3092 [OLK-5.10]KVM: arm64: Add host/guest KVM-PTP support

Merge Pull Request from: @sundongx 
 
ptp: fix error print of ptp_kvm on X86_64 platform
KVM: arm64: Fix Function ID typo for PTP_KVM service
ptp: Don't print an error if ptp_kvm is not supported
ptp: arm/arm64: Enable ptp_kvm for arm/arm64
KVM: arm64: Add support for the KVM PTP service
clocksource: Add clocksource id for arm arch counter
time: Add mechanism to recognize clocksource in time_get_snapshot
ptp: Reorganize ptp_kvm.c to make it arch-independent
KVM: arm64: Advertise KVM UID to guests via SMCCC
arm/arm64: Probe for the presence of KVM hypervisor
KVM: arm64: fix compile error

https://gitee.com/openeuler/kernel/issues/I8DWT1 
 
Link:https://gitee.com/openeuler/kernel/pulls/3092

 

Reviewed-by: Weilong Chen <chenweilong@huawei.com>
Reviewed-by: Liu Chao <liuchao173@huawei.com>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Reviewed-by: Kevin Zhu <zhukeqian1@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>
Acked-by: Xie XiuQi <xiexiuqi@huawei.com>