[S] Change in coreboot[main]: tree: Add kconfig option for testing C23 dialect

[Elyes Haouas (Code Review)]

Attention is currently required from: Jakub Czapiga, Martin L Roth, Nico Huber.

Hello Jakub Czapiga, Martin L Roth, Nico Huber, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/83459?usp=email

to look at the new patch set (#15).

The following approvals got outdated and were removed:
Verified+1 by build bot (Jenkins)

Change subject: tree: Add kconfig option for testing C23 dialect
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tree: Add kconfig option for testing C23 dialect

This adds C23 dialect for testing and prepare for C23 dialect support.

Change-Id: I07db866bebfd25f1a60d18a3228ada2957500234
Signed-off-by: Elyes Haouas 
---
M Makefile.mk
M src/Kconfig
M src/include/stdbool.h
M src/include/stddef.h
4 files changed, 24 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/59/83459/15