buildgcc: Add patch to work around Musl libc issue

GCC includes `sched.h` after poisoning calloc(). This results in a
build failure with Musl libc. We work around the issue by including
`sched.h` earlier and throw around some void pointers so we only
have to do it in one place.

Change-Id: I1d5462eb9a448147a95dd4ec50361b3f5a28910c
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/22786
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>

0 files changed, 0 insertions, 0 deletions