At one time coreboot was built using Heads' musl toolchain, but this
was later reverted. coreboot builds with its own toolchain again.
CROSS= has no effect on coreboot proper (only exception is PPC64
skiboot payload). It was added to coreboot by a patch that was deleted
in 8e44853. COREBOOT_IASL was set to the default, that was only needed
when the toolchain was being overridden to override iasl back to the
coreboot one.
ppc64 still specifies CROSS= since skiboot is unable to find coreboot's
toolchain from XGCCPATH but checks CROSS. This builds skiboot with the
Heads toolchain as before.
Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm>
3695489589