!869 LoongArch: defconfig: Enable a large number of configurations

Merge Pull Request from: @Hongchen_Zhang 
 
1) Referring to other architectures to enable a large number of
configurations.
2) change CONFIG_NR_CPUS to 256
3) change ipmi driver related configs to y
4) change CONFIG_FRAME_WARN to 4096
 
 
Link:https://gitee.com/openeuler/kernel/pulls/869 

Reviewed-by: Guo Dongtai <guodongtai@kylinos.cn> 
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>