Add official Support for Compute Module 4 and IO board to enable external Wifi antenna option

[pfeifersmax]

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Is your feature request related to a problem? Please describe.
For a long time the lacking support for external wifi dongles was to me a big issue with the otherwise best music player Pi OS. Because as soon as you put your Pi in a (metal)case or it is not really close to an access point, the interface and Spotify connect especially become a little frustrating to use.

Describe the solution you'd like
Hifiberry OS 64 is compatible with the Raspberry Pi Compute module 4 now, earlier releases were not. The compute module has a socket for an external wifi antenna that performs a lot better than the onboard antenna of the pi4 and pi5 and on top of that it is a solid plastic antenna that can be fixed to a case, so to me it is better than a usb dongle.

There is a connection board from waveshare that you can get on German Berrybase for 20 Euros (I am not affiliated with either, just where I bought it). The original external antenna costs 5.50 Euros. Finally, the compute module lite is a little cheaper than the complete Pi4, costing 43 Euros.

So all in all it sums up to 69 Euros, which is very close to the price of a Pi4 and a wifi dongle with an antenna.

I am testing it with a Beocreate board and so far it works well.

I think it is easier to officially support the compute module 4 and the IO board than to add support for wifi dongles to the OS.

Describe alternatives you've considered
Support of external Wifi dongles.

Additional context
[Add any other context or screenshots about the feature request here.]
(https://support.hifiberry.com/hc/en-us/community/posts/21932091892253-External-Wifi-in-HifiberryOS-64-is-possible-now)

[hifiberry]

https://support.hifiberry.com/hc/en-us/community/posts/21932091892253