[colug-432] Ubuntu Touch / ubports on post 3G Phone

[jep200404 at columbus.rr.com]

I was afraid that with the demise of 3G service,
Ubuntu Touch / ubports would no longer be available for any post 3G phone.

Well, it looks like at least one phone,
the Google Pixel 3a / 3a XL that has LTE+ / VoLTE
is supported by Ubuntu Touch / ubports.
I wonder if it is the _only_ LTE+ / VoLTE phone supported by ubports.

https://devices.ubuntu-touch.io/device/sargo/