[XL] Change in coreboot[main]: util: add smmstoretool for editing SMMSTORE

[Arthur Heymans (Code Review)]

Attention is currently required from: Filip Lewiński, Michał Kopeć, Sergii Dmytruk.

Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/79080?usp=email )

Change subject: util: add smmstoretool for editing SMMSTORE
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Patch Set 8: Code-Review+1

(2 comments)

Patchset:

PS8: 
Some suggestion to make it easier to use, by parsing fmap. Good for a follow-up. LGTM

File Documentation/util/smmstoretool/index.md:

https://review.coreboot.org/c/coreboot/+/79080/comment/a0e39957_66b33fa4 :
PS8, Line 114: cbfstool coreboot.rom read -r SMMSTORE -f SMMSTORE
             : smmstoretool SMMSTORE set -g dasharo -n NetworkBoot -t bool -v true
             : cbfstool coreboot.rom write -r SMMSTORE -f SMMSTORE
Could FMAP support be added to this tool? That would be easy to get working and remove the need for cbfstool.