Change in flashrom[master]: hwaccess: move x86 port I/O related code into own files

[Nico Huber (Code Review)]

Attention is currently required from: Thomas Heijligen, Angel Pons.
Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/60110 )

Change subject: hwaccess: move x86 port I/O related code into own files
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Patch Set 5:

(1 comment)

File Makefile:

https://review.coreboot.org/c/flashrom/+/60110/comment/d0ddef62_640a0b43 
PS5, Line 786: x86
> I would touch this later in an other commit. This is just about separating the code parts.

My reasoning is that it shouldn't hurt to do it now, and then it would be correct
from the beginning and we wouldn't need to touch this again. IOW, even though the
code is old, you are adding a new, x86-specific file to the build, so it should be
guarded?