It's no longer maintained here other than to address specific issues,
and it prevents us from benefiting from upstream changes. Already,
switching to the GCC toolchain saves 5-10 KiB.
Use the GCC toolchain over the backwards-compatible GCC5 one, since the
latter is being deprecated, and the former landed a few years ago,
in edk2-stable202305.
Change-Id: I47e47592ea29f5a09790b284378f28385faf29f9
Signed-off-by: Benjamin Doron <benjamin.doron@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/88429
Reviewed-by: Sean Rhodes <sean@starlabs.systems>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>