arch/avr32: Fix download of header files

This patch fixes the download of the avr32 headers in crosstool-ng by
fetching them directly from Atmel's web site instead of the now-broken URL
given by the original author of the avr32-header-fetching modification,
who fetched them from a copy on his own, now-defunct server.

It also adds the necessary logic to extract from a zip file, as that is
how the headers are packaged.

To configure it for avr32 after launching ct-ng menuconfig in an empty
directory:

Paths and misc options ->
Shell to use as CONFIG_SHELL = sh
Target options ->
Target Architecture = avr32
Toolchain options ->
Tuple's alias = avr32
Binary utilities ->
binutils version = 2.18a
C compiler
gcc version = 4.2.2
C-library
newlib version = 1.17.0
Enable IOs on long long = yes
Enable IOs on floats and doubles = yes
Disable the syscalls supplied with newlib = yes

CONFIG_SHELL is necessary to get round the "fragment: command not
found" bug when binutils-2.18 is configured using bash.

Prepared against crosstool-ng mercurial trunk on 31 March 2012.

Signed-off-by: Martin Guy <martinwguy@gmail.com>
[yann.morin.1998@free.fr: update bundles sample accordingly]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Message-Id: <CAL4-wQrg_NQ7jm-NCADqeyQr9twyhtx42OUGNThP6gWeqZc=kw@mail.gmail.com>
Patchwork-Id: 232612

# 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

}