Change in coreboot[master]: util/cbftool: Fix the bug in parsing Uefipayload with extended header

[King Sumo (Code Review)]

Attention is currently required from: Patrick Rudolph, Paul Menzel, Dun Tan.
King Sumo has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/57296 )

Change subject: util/cbftool: Fix the bug in parsing Uefipayload with extended header
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Patch Set 3: Code-Review+1

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/57296/comment/0151471b_2fb7616f 
PS3, Line 10: This issue is caused by adding FvNameGuid
            : in UefiPayloadEntry.fdf in EDKII. There is an ext header between header
            : of Fv and header of PayloadEntry in Fv with FvNameGuid. The ext header
            : causes the UefiPayloadEntry to be found incorrectly when parsing Fv.
> Is that a recent change in UefiPayload?

Yes:
commit 4bac086e8e007c7143e33f87bb96238326d1d6ba
Author: Zhiguang Liu 
Date:   Wed Jul 14 14:24:45 2021 +0800

UefiPayloadPkg: Add FV Guid for DXEFV and PLDFV

See also: https://bugzilla.tianocore.org/show_bug.cgi?id=3585

https://review.coreboot.org/c/coreboot/+/57296/comment/34897175_22212661 
PS3, Line 14: 
Add in the commit message:
Link: https://bugzilla.tianocore.org/show_bug.cgi?id=3585