Flight mode fixes

The time out problem was in the end a race condition problem for MTK modems + dual SIM, happening when both radios where being onlined within a very short interval. Please take a look at

https://bugs.launchpad.net/barajas/+bug/1329707

So you can remove this, apologies for the confusion as for me the WWAN bug was triggered due to this problem. Anyway, this illustrates how failing to switch a radio state causes wrong values to be stored in saved-states.