Patch on unsupported AT command

[Marcel Holtmann]

Hi Denis,

> > I think this might need a GAtChat quirk function where we can add extra
> > terminator responses that will be recognized. And maybe even translated
> > into something meaningful.
> 
> Originally I had the terminators freely definable on the GAtChat + some 
> hardcoded ones, but abandoned that approach since it didn't seem useful.  
> Perhaps this needs to be resurrected.
> 
> >
> > Denis, or do you want this quirked in every plugin or modem driver?
> 
> I do prefer non-standard terminators to be setup in the plugin/driver.

I meant adding something like g_at_chat_add_terminator() or so.

Regards

Marcel