HW Relnotes: Add a section for Etherswitch

[ziaee]

Summary

FreeBSD has quite a few drivers supporting several hardware Ethernet
switches. Add all(?) of them to the Hardware Release Notes template,
under a new category since this section is not the smallest section,
and Ethernet Interfaces is quite congested.

This obviously has prequel work which is not done yet but I wanted to
get it out early for feedback.

[zlei]

I think that is a good approach. I have ever ( about 2020 ) tried to find ethernet switches supported by FreeBSD and finally found them in the src. It will be better to have them mentioned in the website.

[bcr]

website/archetypes/release/hardware.adoc

542

Maybe leave this out for now and add it in a separate commit once the details are known?

[ziaee]

website/archetypes/release/hardware.adoc

542

I expect this review to be open a while. I don't intend to commit it this way, just putting it here for visibility.

Currently none of these manuals have hardware sections to draw from, and half of them do not even have manuals yet.

This commit should not land until all of those situations are rectified.

[mhorne]

website/archetypes/release/hardware.adoc

542

A fine plan. Note you can set a "Draft" status for this revision.

[ziaee]

This is done for archetypes, pending reviews:
https://reviews.freebsd.org/D50412
https://reviews.freebsd.org/D50411
Then of course this and some other things will need to be MFCed.

[ziaee]

Iiuc @cperciva said the hw relnotes generation actually discards the current hw relnotes, so this is actually all that's needed.