Add SPE extensions support for PowerPC (after a work by Thomas JOURDAN).
Add a PowerPC sample that supports SPE extensions.

/trunk/arch/powerpc/functions | 13 13 0 0 +
/trunk/arch/powerpc/config.in | 8 8 0 0 +
/trunk/patches/gcc/4.3.1/340-make-mno-spe-work-as-expected.patch | 90 90 0 0 ++++
/trunk/samples/powerpc-unknown-linux-gnuspe/crosstool.config | 309 309 0 0 ++++++++++++++
4 files changed, 420 insertions(+)

# x86 specific options

config ARCH_x86

    select ARCH_SUPPORT_ARCH

    select ARCH_SUPPORT_CPU

    select ARCH_SUPPORT_TUNE

    help

      The x86 architecture, as defined by:

        http://www.intel.com/