mainline inclusion
from mainline-v6.0-rc1
commit e9e7ff16
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5OHOB
CVE: NA

--------------------------------

Parse MADT to get multi-processor information, in order to fix the boot
problem and cpu-hotplug problem for SMP platform.
Signed-off-by: NHuacai Chen <chenhuacai@loongson.cn>