Settings: fix incorrect default sim/sms/data selection logic

change id I8ba32f3b203751e79697c7dcbc2cfcf1c6ae4ad0 broke this and
assumed all needed a default index of 0; set it to -1 only for the data
selection.

Ticket: CYNGNOS-2388, CYNGNOS-2212

Change-Id: Ic81d1151aa71017e261107f1d67785cc50f2bd7f
Signed-off-by: Roman Birg <roman@cyngn.com>