Revert "x86/microcode: Rip out the OLD_INTERFACE"

stable inclusion
from stable-v5.10.173
commit 9e56938f207241512aab787b17c88c96dc150b90
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8IOCW
CVE: NA

Reference: https://github.com/torvalds/linux/commit/9e56938f207241512aab787b17c88c96dc150b90



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

This reverts commit ab873cbb.

Signed-off-by: sanglipeng <sanglipeng1@jd.com>

Conflicts:
	arch/x86/Kconfig