binutils: Added ranlib to tools list

so that it is available to available to
the core C compiler build because static
libraries are built and ranlib is used
on them.

Signed-off-by: Ray Donnelly <mingw.android@gmail.com>
Message-Id: <CAOYw7dt=+DdnKAHNShfs6a+=7sS+DLQYkyxnQMAwmw7E7zqvgA@mail.gmail.com>
Patchwork-Id: 316477

# 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

}