scripts: Update config.guess and config.sub

Update config.guess and config.sub from:
http://git.savannah.gnu.org/gitweb/?p=config.git

Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>
[yann.morin.1998@free.fr: further update]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Message-Id: <befa8e8e81336bc1c415.1393054644@Bryans-MacBook-Pro.local>
Patchwork-Id: 323128

# Compute s390-specific values

CT_DoArchTupleValues() {

    # That's the only thing to override

    if [ "${CT_ARCH_64}" = "y" ]; then

        CT_TARGET_ARCH="s390x${CT_ARCH_SUFFIX}"

    fi

}