euler inclusion
category: feature
Bugzilla: 5515
CVE: N/A

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Add nmi_watchdog support for arm64 based on SDEI.
Signed-off-by: NXiongfeng Wang <wangxiongfeng2@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>