Add support for powerpc64, along with an EXPERIMENTAL sample.

/trunk/scripts/build/arch/powerpc64.sh | 21 1 20 0 -
/trunk/scripts/build/arch/powerpc.sh | 21 1 20 0 -
/trunk/samples/powerpc64-unknown-linux-gnu/crosstool.config | 388 388 0 0 +++++++++++++++++++
/trunk/samples/powerpc64-unknown-linux-gnu/reported.by | 3 3 0 0 +
/trunk/config/arch/powerpc-powerpc64.in-common | 12 4 8 0 -
/trunk/config/arch/powerpc.in | 15 0 15 0 -
/trunk/config/arch/powerpc64.in | 19 3 16 0 -
7 files changed, 400 insertions(+), 79 deletions(-)

 # MIPS specific config options

 config ARCH_mips

     select ARCH_SUPPORTS_BOTH_ENDIAN

     select ARCH_DEFAULT_BE

     select ARCH_SUPPORT_ARCH

     select ARCH_SUPPORT_ABI

     select ARCH_SUPPORT_TUNE

     help

       The MIPS architecture, as defined by:

         http://www.mips.com/