EC200U support

[Aleksander Morgado]

Hey Ralf,

>
> is Quectel EC200U (or EG915U) supported yet? AT ports are recognized by ModemManager 1.18.6, ECM port is not.
>

If we are detecting AT ports properly then AT+PPP should be possible.
The current Quectel plugin doesn't have any support for ECM based
connections.
Don't know much about the EC200U, but after a quick online search it
doesn't seem to be Qualcomm based so QMI is not an option. Maybe
implementing support for the ECM based connections is really required
in the Quectel plugin in order to handle this device.

Cheers!

-- 
Aleksander
https://aleksander.es