Remove struct size hacks in net80211

wpa_supplicant needs to be rebuilt
against it and then this needs to be tested.

Added some FIXMEs to keep track of places I'm not sure if we need to
change anything.

Fixes #14805

Change-Id: I6379dc32b772289960afbfb362365a542a986983
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2225
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

freebsd_wlan: Merge the new net80211 code from FreeBSD 12.

Changes to the Haiku module will come in the next commit.
There are a few Haiku-specific changes in here; most notably some
hacks to prevent struct size changes from breaking wpa_supplicant,
and a removal of the full ieee80211_channel structure from some ioctls
where we previously returned it.

freebsd11_wlan -> freebsd_wlan.

FreeBSD 12's net80211 layer contains only 2 small KPI breaks from FreeBSD 11,
so we can upgrade it, apply those 2 changes to the drivers which are affected
(as the changes are in some lesser-used functions), and then upgrade all drivers
one at a time.

added some glue to register correctly rate control modules


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41247 a95241bf-73f2-0310-859d-f6bbb57e9c96

merged changes from 8.2 FreeBSD release for most wlan drivers and net80211.
updated several firmwares for iprowifi4965 and iprowifi3945. Tested on iprowifi4965 only.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41240 a95241bf-73f2-0310-859d-f6bbb57e9c96

added some glue to register correctly rate control modules


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41247 a95241bf-73f2-0310-859d-f6bbb57e9c96

merged changes from 8.2 FreeBSD release for most wlan drivers and net80211.
updated several firmwares for iprowifi4965 and iprowifi3945. Tested on iprowifi4965 only.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41240 a95241bf-73f2-0310-859d-f6bbb57e9c96