[M] Change in coreboot[master]: util/kconfig/README.md: Add notes about adding a new quilt patch

[Nicholas Chin (Code Review)]

Attention is currently required from: Patrick Georgi, Martin L Roth, Nicholas Chin.

Hello Patrick Georgi, Martin L Roth, Angel Pons,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/69458

to look at the new patch set (#2).

Change subject: util/kconfig/README.md: Add notes about adding a new quilt patch
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util/kconfig/README.md: Add notes about adding a new quilt patch

The patches for kconfig need to be in a format compatible with the quilt
tool, and usually also contain a header with some additional info like
the git commit. This header is in the same format as patches produced by
`git format-patch`, but the diff style git uses is incompatible with
quilt and there does not seem to be a straightforward way to format the
diff section to work.

Add some documentation for a method I found to go from a git commit to a
quilt compatible patch with git headers.

Change-Id: I7a8bbe41e0864be1d28116742b6b8b3fc440cc31
Signed-off-by: Nicholas Chin 
---
M util/kconfig/README.md
1 file changed, 61 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/58/69458/2