cdce.4: Improve HARDWARE

The cdce driver is the main USB tethering driver now that both Android
and iPhone tethering are using USB NCM. I would like to test a recent
5G hotspot to see what those are doing. Improve the HARDWARE section to
reflect this.

MFC after: 3 days
Reviewed by: mhorne
Approved by: mhorne (mentor)
Differential Revision: https://reviews.freebsd.org/D50541