!444 LoongArch: some LS7a device drivers support and LoongArch bug fix

Merge Pull Request from: @Hongchen_Zhang 
 
- add cpufreq support
- add gpio support
- add i2c support
- add spi support
- add rtc support
- add gpio support
- add s3/s4 support
- add LS7A modesetting drivers upport
- add LSX/LASX support
- fix ltp prctl test error
- fix compile error when CONFIG_DEBUG_INFO_BTF enabled
 
 
Link:https://gitee.com/openeuler/kernel/pulls/444

 

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