Fix to prevent unnecessary mode changes in LTE network modes.

- Add LTE network modes to valid network mode checks.
- Do not treat LTE_ONLY any differently from other network modes when
world_phone is set to true. Treating it differently causes
inconsistencies between what the user sees and what is stored in
persistent storage.
- Add missing network modes for Settings

Change-Id: I46fd9467ca4647b14ea30fec6ff4215be83105ba
2 files changed