[S] Change in coreboot[master]: include/cpu/x86: Simplify en/dis cache functions

[Arthur Heymans (Code Review)]

Attention is currently required from: Felix Singer, Himanshu Sahdev, Jérémy Compostella, Lean Sheng Tan, Subrata Banik.

Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/75552?usp=email )

Change subject: include/cpu/x86: Simplify en/dis cache functions
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Patch Set 2:

(1 comment)

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

https://review.coreboot.org/c/coreboot/+/75552/comment/29de0641_2c7c880e :
PS2, Line 48: CR0_CacheDisable
> > want me to change it to screaming snake case -> CR0_CACHE_DISABLE?
>
> yup, this is what make sense.
> > Also, these macros being in use already, better to do it in different CL to change everywhere.
>
> sure

CR0_CD and CR0_NW is fine too IMO