- Disable MMU before reconfiguring the pagetables in the trampoline code.   Otherwise we might end up overwriting the PTEs we're currently using   for some reason.
- Disable MMU before reconfiguring the pagetables in the trampoline code.
  Otherwise we might end up overwriting the PTEs we're currently using
  for some reason.

Reviewed by:	cognet

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