broadband-modem-qmi: implement UE mode get/set

Instead of relying on getting/setting the UE mode via AT +CEMODE command
which on Quectel RM520N (And I assume other QMI based modems) only allows
getting the value and not setting one it has special AT commands for CS/PS
and voice/data centric values.

So lets instead use the QMI Get/Set System Selection Preference TLV which
offers service domain and usage domain preference info so we can use those
to get/set the 3GPP TS 24.301 UE mode values.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>

0 files changed, 0 insertions, 0 deletions