expose Carrier Id related APIs

1. expose public API for preciseCarrierId and preciseCarrierIdName
2. expose public API for carrier id in CarrierIdentifier
3. New public broadcast for precise carrier identity changed
4. clean up

Bug: 110559381
Test: unit test & atest CtsTelephonyTestCases:TelephonyManagerTest
Change-Id: I18f8bc3252632bba699829c6c577d1041335fee9