x86: fix deprecated CONFIG_MICROCODE_OLD_INTERACE

x86: fix deprecated CONFIG_MICROCODE_OLD_INTERACE

We use late loading[1] so need to set this option despite upstream adding a
kernel taint when this option is set.  See discussion in PR#12149 for more details.

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/diff/arch/x86/Kconfig?id=v5.10.173&id2=v5.10.172

1. https://github.com/openwrt/openwrt/blob/master/target/linux/x86/base-files/lib/preinit/02_load_x86_ucode

Signed-off-by: John Audia <therealgraysky@proton.me>
(cherry picked from commit 0c5ffe1ab2b4843635555e2a234f8bd5cb4d6978)