[L] Change in flashrom[main]: rpmc: add rpmc commands feature

[Peter Marheine (Code Review)]

Attention is currently required from: Anastasia Klimchuk, Matti Finder.

Peter Marheine has posted comments on this change by Matti Finder. ( https://review.coreboot.org/c/flashrom/+/84934?usp=email )

Change subject: rpmc: add rpmc commands feature
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Patch Set 1:

(1 comment)

File include/rpmc.h:

https://review.coreboot.org/c/flashrom/+/84934/comment/38966ef0_ec9b0810?usp... :
PS1, Line 37: 	uint8_t status;
It looks like you use status values in the CLI and 0x80 always indicates success, but that's not a value I would expect to indicate success. Can you add a little documentation here and perhaps also explain better what the function return values mean (even if it's just referring to an explanation attached to this field)?