!3998 cpufreq: CPPC: Fix performance/frequency conversion

Merge Pull Request from: @ci-robot 
 
PR sync from: Zeng Heng <zengheng4@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/O6VDPOFYYCNYJPTKZUPURVH3XDK6LDPS/ 
 
https://gitee.com/openeuler/kernel/issues/I8WAED 
 
Link:https://gitee.com/openeuler/kernel/pulls/3998

 

Reviewed-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Reviewed-by: Zucheng Zheng <zhengzucheng@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>