binutils/binutils: simplify gold dependencies

In preparation of adding a new kernel-type, Yann D. came up
with a change in semantic on binutils/gold availability.

So far, it was architectures' responsibility to declare that
they did support binutils/gold or not. It makes much more sense
that binutils/gold declares its own availability depending on
the current architecture; after all, architectures have no way
to know wether gold supports them, while gold does know it.

Signed-off-by:Yann Diorcet <diorcet.yann@gmail.com>
[yann.morin.1998@free.fr: split up original patch for self-contained changes]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Message-Id: <d3d1d51f399e6d2c1163.1353320546@macbook-smorlat.local>
Patchwork-Id: 199971

# Build script for make

CT_MAKE_VERSION=3.81

do_companion_tools_make_get() {

    CT_GetFile "make-${CT_MAKE_VERSION}" \

               {http,ftp}://ftp.gnu.org/gnu/make

}

do_companion_tools_make_extract() {

    CT_Extract "make-${CT_MAKE_VERSION}"

    CT_DoExecLog ALL chmod -R u+w "${CT_SRC_DIR}/make-${CT_MAKE_VERSION}"

    CT_Patch "make" "${CT_MAKE_VERSION}"

}

do_companion_tools_make_build() {

    CT_DoStep EXTRA "Installing make"

    mkdir -p "${CT_BUILD_DIR}/build-make"

    CT_Pushd "${CT_BUILD_DIR}/build-make"

    CT_DoExecLog CFG "${CT_SRC_DIR}/make-${CT_MAKE_VERSION}/configure" \

                     --prefix="${CT_BUILDTOOLS_PREFIX_DIR}"

    CT_DoExecLog ALL make

    CT_DoExecLog ALL make install

    CT_Popd

    CT_EndStep

}