Track command line change / switch to DeviceConfig

Switch test infrastructure to use DeviceConfig instead of dedicated
location_time_zone_manager shell commands where there is overlap.

Test: atest hostsidetests/time/host/src/android/time/cts/host/LocationTimeZoneManagerHostTest.java
Test: atest hostsidetests/time/host/src/android/time/cts/host/LocationTimeZoneManagerStatsTest.java
Test: atest hostsidetests/time/host/src/android/time/cts/host/TimeZoneDetectorStatsTest.java
Bug: 178169250
Change-Id: I4459e50df636c5dd42b83d579503403553514fd8