Add carrier roaming atom should be reported per subscription ID

Currently carrier roaming metrics has only on snapshot, it is needed to distinguish atom per subscription

Bug: 366329504
Flag: com.android.internal.telephony.flags.carrier_roaming_nb_iot_ntn
Test: atest PersistAtomsStorageTest, SatelliteStatsTest
      manually run and get the DB to verify whether atoms are reported as expected
Change-Id: If48652f97363c6467c007752da241825199e28a1