Converted SparseArray to ConcurrentHashMap

The following SparseArrays are converted to ConcurrentHashMap:
- mCarrierConfigArray
- mLastSatelliteDisconnectedTimesMillis
- mWasSatelliteConnectedViaCarrier
- mLastNotifiedNtnMode
- mInitialized
- mLastNotifiedCarrierRoamingNtnSignalStrength
- mSatelliteEntitlementStatusPerCarrier
- mEntitlementPlmnListPerCarrier
- mEntitlementBarredPlmnListPerCarrier
- mMergedPlmnListPerCarrier
- mEntitlementDataPlanMapPerCarrier
- mEntitlementServiceTypeMapPerCarrier
- mEntitlementDataServicePolicyMapPerCarrier
- mEntitlementVoiceServicePolicyMapPerCarrier

Bug: 409584433
Test: 420726710
Test: atest
Flag: com.android.internal.telephony.flags.satellite_improve_multi_thread_design
Change-Id: Iec3c6eb7d96fdb1e94578c58ffcb0c3731d71ac7