Change in flashrom[master]: hwaccess: replace macros by C code

[Felix Singer (Code Review)]

Attention is currently required from: Nico Huber, Thomas Heijligen, Edward O'Callaghan, Angel Pons, Nikolai Artemiev, Anastasia Klimchuk.
Felix Singer has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/62898 )

Change subject: hwaccess: replace macros by C code
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Patch Set 2:

(3 comments)

Commit Message:

https://review.coreboot.org/c/flashrom/+/62898/comment/4d6a7002_e43b82ca 
PS2, Line 9: convertion
conversion

https://review.coreboot.org/c/flashrom/+/62898/comment/fb374f75_87cd52a0 
PS2, Line 9: into a file for big and one for
           : little endian.
Suggestion:
  ... into separate files, for big and little endian.

Patchset:

PS2:
> I started to review, then realized that I'm not fully convinced. What […]

I thought the same. I'm fine with C functions, but they should be inline.