binutils/elf2flt: restore the custom location functionality

Somehow, it got lost when incorporating elf2flt in the binutils farmework.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

#!/bin/sh

set -e

printf "Running autoconf...\n"

autoconf -Wall --force

printf "Done. You may now run:\n    ./configure\n"