- Don't dereference net device in suspend/resume methods until we
  know the device data has actually been set.

- Remove deprecated MOD_INC_USE_COUNT/MOD_DEC_USE_COUNT

- System devices in their original form are long since dead.  Convert
  to using a platform device.

- Convert to parameters to moduleparam format.

- Use register_netdev not register_netdevice - the latter causes us
  to register "irda%d" as the device name rather than a properly
  formatted device name.