* Add python wrapping for all tests run on the PPU, enabling
  proper XML reports, arbitrary "successful" return codes,
  waf-flow etc.
* Run all tests in Jenkins (was: only hardware tests)
* Make check_obj_size work for stack protection mechanism:
  linker objects are of different type, objects may be larger

Change-Id: I810dd17594fa2d5c807395bc1a0f48868202b153