uipaq.4: Rewrite HARDWARE for HW Relnotes

Rewrite the HARDWARE section conforming to mdoc(7) and style.mdoc(7)
providing better rendering and increased clarity in the HW Relnotes.

MFC after: 3 days
Reviewed by: carlavilla, imp, ziaee
Approved by: carlavilla (mentor)
Pull Request: https://github.com/freebsd/freebsd-src/pull/1665