TODO before this is completely ready

write udev rules like described in rpmsgexport, in a new modem-qcom-msm-mainline-common package, which depends on qcom_rmtfs
- probably need to package rpmsgexport, for above
maybe transcribe other channels from the MSM fork (see the array above that for /dev names)? Probably not, if we don't have a need for them

Opening this PR might have been premature since I can't test the full polished solution... I didn't want the work to get lost though.

ofono QMI: mainline kernel support