Update maximum number of tables available in ipfw to reflect changes done in r233478.
Update maximum number of tables available in ipfw to reflect
changes done in r233478.

Approved by:      kib(mentor)
MFC after:        3 days

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