[review] skip concatenated AT commands

[Aleksander Morgado]

Hey,

I've pushed a MR to gitlab to avoid using concatenated AT commands in
the generic plugin:
https://gitlab.freedesktop.org/mobile-broadband/ModemManager/merge_requests/4

Looks like there are modems out there (u-blox TOBY-L4 the only one I
know of for now) that don't support these properly; as explicitly
stated in the corresponding AT command reference.

Comments?

-- 
Aleksander
https://aleksander.es