MFi386 1.222.  Remove vm_map_growstack and acquisition and release of Giant from trap_pfault.
MFi386 1.222.  Remove vm_map_growstack and acquisition and release of Giant
from trap_pfault.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase