Add definitions for Freescale PowerPC implementations,

  ie MPC5xx, MPC8xx, e200, e300, e500 and e600 cores.
Make those CPUs and PowerPC 440 available for user-mode emulation,
  thus providing a way of testing their implementation specific instructions.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3681 c046a42c-6fe2-441c-8c8c-71466251a162