!849 drivers/cpufreq: gain accurate CPU frequency from cpufreq/cpuinfo_cur_freq

Merge Pull Request from: @henryze 
 
When users want to get frequency by cpuinfo_cur_freq under cpufreq sysfs,
they often get the invalid result like:

$ cat /sys/devices/system/cpu/cpu6/cpufreq/cpuinfo_cur_freq
4294967295

So this series provides fixes to the concerned issue.

Reference: https://lore.kernel.org/all/20230516133248.712242-3-zengheng4@huawei.com/ 
 
Link:https://gitee.com/openeuler/kernel/pulls/849

 

Reviewed-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>