Refs #4682 - This commit fixes c_flush test failure in the ibm test suite for Portals 4 OSC

cmr=v1.8.2:reviewer=tkordenbrock:subject=Move r32112 to v1.8.2 branch
This commit fixes #4681 - ibm c_fence_lock hangs

cmr=v1.8.2:reviewer=tkordenbrock:subject=Portals4/MTL hanging fix