Log if watch ranging is available on device

Logging via Settings.Global. The value is updated daily.

Flag: android.hardware.biometrics.identity_check_watch
Bug: 433621147
Test: atest IdentityCheckWatchRangingLoggerTest WatchRangingServiceTest
Change-Id: I577fd0beb4e507f3453be3a7792d6b6e222e59b8