Add 7901B support.
Add 7901B support.

Sort IDs based on chip type.

Remove IROC IDs.  We'll switch to using the IROC masks
if/when we want to start attaching to IROC controllers.

Approved by: RE

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