[M] Change in coreboot[main]: cpu/x86/mtrr: Use fls/ffs from lib.h

[Angel Pons (Code Review)]

Attention is currently required from: Angel Pons, Felix Held, Fred Reitberger, Jason Glenesk, Jérémy Compostella, Matt DeVillier, Shuo Liu.

Angel Pons has posted comments on this change by Shuo Liu. ( https://review.coreboot.org/c/coreboot/+/85104?usp=email )

Change subject: cpu/x86/mtrr: Use fls/ffs from lib.h
......................................................................

Patch Set 5:

(1 comment)

File src/include/cpu/x86/mtrr.h:

https://review.coreboot.org/c/coreboot/+/85104/comment/87620597_11186cb6?usp... :
PS5, Line 80: #include <lib.h>
> nit: I know this is not an official rule but most of the time but the inclusion follows the alphabet […]

I would agree with this but there's other includes at the beginning of the file and none of them are sorted alphabetically. I don't think this change makes it worse, and I wouldn't mind if someone consolidated the includes at the start of the file.

Actually, this change *is* consistent with the existing *reverse* alphabetical order in the file :^)