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

[Anastasia Klimchuk (Code Review)]

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

Change subject: writeprotect: add {get,set}_wp_mode()
......................................................................

Patch Set 67: Code-Review+2

(1 comment)

File writeprotect.c:

https://review.coreboot.org/c/flashrom/+/58483/comment/b0c2c3b7_4a5e08fd 
PS58, Line 366: 	}
> I agree, the reversed order isn't very readable. […]

Ok, I can see a reason to submit this one together with the previous, because it completes WP implementation which can be used from libflashrom.

To summarise, there are two follow-ups to do on this first batch of 11 patches:
1) update the wiki page (from CB:58477)
2) and this little refactoring from here.