Change in flashrom[master]: writeprotect: add {get,set}_wp_mode()

[Nikolai Artemiev (Code Review)]

Attention is currently required from: Nico Huber, Angel Pons, Sergii Dmytruk.
Nikolai Artemiev has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/58483 )

Change subject: writeprotect: add {get,set}_wp_mode()
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Patch Set 52:

(1 comment)

File writeprotect.c:

https://review.coreboot.org/c/flashrom/+/58483/comment/0af1ab16_7ce2651a 
PS25, Line 437: }
> I wonder if it's a good idea to have SRP bits in an array. The intention […]

Yeah, I don't think we'll have to handle more than 2 bits and so the array isn't really necessary.

Personally I'd prefer `srp` over `hwwp` since I've seen `hwwp` used to refer to a few different things in various contexts.

Maybe we can go with srp/srl (status register protect/lock) like some Winbond chips or just srp0/srp1?