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

[Paul Menzel (Code Review)]

Attention is currently required from: Patrick Rudolph, Dun Tan, King Sumo.
Paul Menzel 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:

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/57296/comment/90a858fb_eff1beef 
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.
> Yes: […]

Please mention that in the commit message.