cc/gcc: Add Fortran support for Baremetal build

Signed-off-by: Zhenqiang Chen <zhenqiang.chen@linaro.org>
[yann.morin.1998@free.fr: fix damage due to mailer]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Message-Id: <CACgzC7D5HCVS-qX=ydcQphNFH=VGgJzTdZWQWaLKAv-CdE8crA@mail.gmail.com>
Patchwork-Id: 292703

 #!/bin/sh

 set -e

 printf "Running autoconf...\n"

 autoconf -Wall --force

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