coreboot toolchain.inc uses the ARCH_SUPPORTED variable set
by xcompile. This change allows for consistent naming in the
toolchain.inc generated variables.
Change-Id: Iafed06cf2d19a533f99e10b76aca82adc3e09fa8
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-on: http://review.coreboot.org/8235
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
c4dbdaf50a