13.2 hardware: add Microsemi SmartPQI

Note, "the Microsemi Chipset" is insufficiently specific, but I just
took the description from the man page. Both to be updated if we can
obtain a better description.

PR: 272470
Reviewed by: gjb
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D41068