[M] Change in flashrom[main]: Extract SPI declarations to the correct header

[Sergii Dmytruk (Code Review)]

Attention is currently required from: Antonio Vázquez Blanco, David Reguera Garcia (Dreg), Matti Finder, Miklós Márton, Nikolai Artemiev.

Sergii Dmytruk has posted comments on this change by Antonio Vázquez Blanco. ( https://review.coreboot.org/c/flashrom/+/85539?usp=email )

Change subject: Extract SPI declarations to the correct header
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Patch Set 2:

(1 comment)

Commit Message:

https://review.coreboot.org/c/flashrom/+/85539/comment/93cdb036_fbdba7e1?usp... :
PS2, Line 7: Extract SPI declarations to the correct header
Nit: "extract" usually means creating something new in the process of move (header in this case), so I think "move" explains what happens better.  I'd also mention at least target header because I had to look through the changes to understand what is being done.