[review] skip concatenated AT commands

[Dan Williams]

On Fri, 2018-06-22 at 16:58 +0200, Aleksander Morgado wrote:
> 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_re
> quests/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.

Merged to git master.

Dan