Change in flashrom[master]: [RFC] writeprotect, cli_classic: create writeprotect foundation

[Nikolai Artemiev (Code Review)]

Attention is currently required from: Nico Huber, Edward O'Callaghan, Angel Pons, Anastasia Klimchuk.
Nikolai Artemiev has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/58474 )

Change subject: [RFC] writeprotect, cli_classic: create writeprotect foundation
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Patch Set 5:

(1 comment)

File writeprotect.h:

https://review.coreboot.org/c/flashrom/+/58474/comment/e89380ba_3772ee44 
PS3, Line 21: #define MAX_WP_RANGES 128
> I chose 128 arbitrarily, but it can be bounded by the number of range-related bits on a chip. […]

Also the reason why it's here is to specify the size of the output buffer that needs to be passed to wp_get_ranges(). I should probably add a comment for that. Alternately I can make wp_get_ranges() allocate memory but that's inconvenient for the caller as well.