iwlwifi: AX201 not using 2 receive streams

[Brandon Nielsen <nielsenb@xxxxxxxxxxx>]

I have a system with Intel AX201 not using 2 spatial streams in the RX 
(download) direction. TX (upload) functions as expected. I'm seeing 
similar behavior with an AX200 system. I'm seeing the same behavior on 
5.15.12 as I am with 5.16.0-rc8 so I didn't mark it as a regression. 
Windows works as expected.

I have opened bug 215465[0] with some more detail.

[0] - https://bugzilla.kernel.org/show_bug.cgi?id=215465