rtems-4.6ng/powerpc: add original spec files from rtems-4.10
rtems-4.6ng/powerpc: add first changelog entry
rtems-4.6ng/powerpc: modify gdb 7.2 for rtems-4.6
rtems-4.6ng/powerpc: modify binutils 2.20.1 for rtems-4.6
rtems-4.6ng/powerpc: modify gcc 4.4.7 for rtems-4.6
rtems-4.6ng: build autoconf 2.59 for rtems-4.6
rtems-4.6ng: build automake 1.7.2 for rtems-4.6