 - Make mp_maxid reflect the same meaning as it does on other architectures.    It is one past the last valid cpuid.  This relied on a different bug in    UMA to work properly.
 - Make mp_maxid reflect the same meaning as it does on other architectures.
   It is one past the last valid cpuid.  This relied on a different bug in
   UMA to work properly.

Reported/Tested by:	phk
Approved by:		rwatson

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