test sources moved to test/ directory. MPI test displays PASS/FAIL and returns code accordingly. Change-Id: I058ebd1bd5202d8f38cc9787898b2480100c102b Reviewed-on: http://git-master/r/936086 Reviewed-by: Przemek Tredak <ptredak@nvidia.com> Tested-by: Przemek Tredak <ptredak@nvidia.com>