Add feature flag geofence_enhancement_for_better_ux

Bug: 348675732
Flag: com.android.internal.telephony.flags.geofence_enhancement_for_better_ux
Test: Build
Test: Verified with the end to end test with the satellite test applications if it is working well according to the feature flags(geofence_enhancement_for_better_ux).

Change-Id: I1f1ccfd29d085575630f67bcbc6ee8ee92d1c909