Device State LLM infrastructure

- Setup device state app functions in Settings.
- Convert Catalyst settings data into device state app function responses.

BYPASS_LARGE_CHANGE_WARNING

Test: manually tested with AFC test app.
Flag: com.android.settings.flags.device_state
Bug: 402544934

Change-Id: I35c14acac04efc712c7a6384fa31678ae7771573