Add some new driver definitions as part of the chip support updates:

This is a no-op for now!

* Add a new flag value for "there are no extra bits" for some random
  field;

* Add a definition for the maximum number of calibration entries in
  the calibration data cache in iwn_softc.  It's not yet used.

* Add regulatory bands for the 2030 NIC.

Submitted by:	Cedric Gross <cg@cgross.info>