Huawei fixes in '06-huawei' branch

[Aleksander Morgado <aleksander lanedo com>]

Hey Dan,

Your Huawei fixes in the 06-huawei branch seem to work properly with the
E173, so I would merge them. Will hack those changes in git master in
the following days.

Ubuntu bug:
https://bugs.launchpad.net/ubuntu/+source/modemmanager/+bug/1057186

Latest log:
https://launchpadlibrarian.net/121103777/modem.log.txt

Cheers!

-- 
Aleksander