Fixes for running the PMPI gtests on OBS.
Fixes for running the PMPI gtests on OBS.

- A few MPI functions are broken with older platforms on OBS.  This
  patch mocks them out to return 0.

Change-Id: I757a790304b6e38ce2c5302e13efecb5a0c1382b
Signed-off-by: Geltz, Brad <e42f3ad4099980ea02f08e076efbee5cf9d4a803@intel.com>

cmcantalupo/geopm,geopm/geopm,cmcantalupo/geopm,geopm/geopm,cmcantalupo/geopm,cmcantalupo/geopm,geopm/geopm,cmcantalupo/geopm,geopm/geopm,geopm/geopm,sssylvester/geopm,sssylvester/geopm,sssylvester/geopm,sssylvester/geopm