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

(cherry picked from commit 85a3ec9de84bc7787c11fa25bca54b8bc4d814fa)