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

[Anastasia Klimchuk (Code Review)]

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

Change subject: hwaccess: replace macros by C code
......................................................................

Patch Set 6: Code-Review+1

(2 comments)

Patchset:

PS5:
> Does anybody have a preference regarding `ULL` vs. `ull`? […]

The only thing I can think about is: lowercase l looks like uppercase I. But uppercase L does not have this issue :)

File hwaccess.h:

https://review.coreboot.org/c/flashrom/+/62898/comment/166d8ae0_6b2bd2ce 
PS6, Line 28: swap
It used to be "swab" and now it is "swap" (one char difference in the name). Is this intentional?