LoongArch: defconfig: Enable a large number of configurations

LoongArch inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I79V61



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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

Signed-off-by: Yingkun Meng <mengyingkun@loongson.cn>
Signed-off-by: Juxin Gao <gaojuxin@loongson.cn>
Signed-off-by: Hongchen Zhang <zhanghongchen@loongson.cn>