[M] Change in coreboot[main]: util/kconfig: Uprev to Linux 6.1's kconfig

[Felix Held (Code Review)]

Attention is currently required from: Patrick Georgi.

Felix Held has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/79203?usp=email )

Change subject: util/kconfig: Uprev to Linux 6.1's kconfig
......................................................................

Patch Set 3:

(1 comment)

File util/kconfig/confdata.c:

https://review.coreboot.org/c/coreboot/+/79203/comment/b21fd132_0fd73aa9 :
PS3, Line 235: 	char *name = getenv("KCONFIG_RUSTCCFG");
looks like we need to set that one. haven't bisected this, but seems to me that this is the reason why a build now creates include/generated/rustc_cfg inside the coreboot directory which then shows up as unstaged file. not sure if we need that one, but if so, we should probably specify KCONFIG_RUSTCCFG so that it'll point to somewhere inside build/