Newer huawei modems, like the E3372, use the following ^GETPORTMODE response
format:
^GETPORTMODE: TYPE: WCDMA: ,pcui:1,modem:2,ncm:3,mass:4,mass_two:5,
This patch updates the parser that looks for the control TTY (pcui) and data TTY
(modem).
https://bugs.freedesktop.org/show_bug.cgi?id=86658