[L] Change in coreboot[main]: util/ifdtool: Add new cmdline to enable GPR0 protection

[Paul Menzel (Code Review)]

Attention is currently required from: Stefan Reinauer, Subrata Banik.

Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/80235?usp=email )

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Change subject: util/ifdtool: Add new cmdline to enable GPR0 protection
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Patch Set 5: Code-Review+1

(4 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/80235/comment/a76ef596_4fe370bf :
PS5, Line 7: Add new cmdline to enable GPR0 protection
Maybe:
> Add new switch -E to protect GPR0

https://review.coreboot.org/c/coreboot/+/80235/comment/6cdce12c_c803d389 :
PS5, Line 9: IFD Tool
I have not seen that spelling – only ifdtool.

https://review.coreboot.org/c/coreboot/+/80235/comment/2dd6bc72_7a0ae47e :
PS5, Line 11: Additionally, perform some code refactoring while adding support
It’d be great, if you added a blank line between paragraphs.

https://review.coreboot.org/c/coreboot/+/80235/comment/acbdf667_49bf2100 :
PS5, Line 13: 
Can you point to a document, where more information about GPR0 protection can be found?