SPI flash on HiFive Unmatched

From: Thomas Skibo <thomas-bsd_at_skibo.net>
Date: Mon, 16 Aug 2021 17:57:55 UTC
Hello.

I've managed to get the SPI flash memory working on the HighFive Unmatched
with only a few changes.  I put them up on Phabricator at
https://reviews.freebsd.org/D31562.  It includes a bug fix in sifive_spi.c.

--Thomas