iwlwifi sporadically does not attach

From: Patrick Mackinlay <patrick_at_spacesurfer.com>
Date: Thu, 31 Mar 2022 09:33:11 UTC
I am using a matebook pro x 2021 (AX201) with FreeBSD 13 stable 
(60338b80693000ed0f9812b90ca54d35fd077cd0 Sat Mar 26 11:04:36 2022 +0100).

Sometimes the iwlwifi driver does not attach, I get the message

device_attach: iwlwifi0 attach returned 60

Even if I unload the module and reload I get the same error. I have 
attached full logs.

When the driver does attach (most of the time) then the WiFi is pretty