Changes to support time zone provider status APIs

These changes add a new status (not yet part of the SDK API) that will
enable the time zone detection service to make decisions like telephony
fallback based on information from the provider.

The status will also enable information to ultimately be surfaced to the
user in SettingsUI about the time zone detection being blocked or
running degraded due to settings like the "Google Location Accuracy"
setting on GMS device.

The SDK API changes will be made once the information passed is used and
can actually be detected from tests.

Test: atest core/tests/coretests/src/android/service/timezone/
Test: atest services/tests/servicestests/src/com/android/server/timezonedetector/location/
Bug: 236624675
Change-Id: Ia1a9f9a18454fc087d187289d761d5e3649bbaee