ascend inclusion
category: feature
bugzilla: NA
CVE: NA

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Export cpu_suspend/cpu_resume/psci_ops for lowpower driver.
Signed-off-by: NBixuan Cui <cuibixuan@huawei.com>
Reviewed-by: NHanjun Guo <guohanjun@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>