Add pagemask debugging output in "show tlb" in the debugger.
Add pagemask debugging output in "show tlb" in the debugger.

Approved by:	re (marius)
Obtained from:	bsdimp

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