crossgcc: Clean out ABI variable for GMP

This is sometimes set by packaging systems (eg Gentoo), so give it a
sane preset.

Change-Id: I651fad12128143e8ed5053e7e9871ea271bfc797
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/20632
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

0 files changed, 0 insertions, 0 deletions