Add implementation for new APIs in ITelephony used by owner groups to vote on radio power state

Bug: 228777724
Design doc: go/voting-radio-power-state
Test: Run the following tests
 - atest android.telephony.cts.TelephonyManagerTest
 - atest com.android.internal.telephony.ServiceStateTrackerTest
 - atest com.android.internal.telephony.data.DataNetworkControllerTest
 - atest com.android.internal.telephony.dataconnection.DcTrackerTest
 - atest com.android.internal.telephony.GsmCdmaPhoneTest
Change-Id: I00db54a15fb9d9cd592dbf45612f626598b9ae9c

Change-Id: If02e2b2453edade506726aa82680d3da561f7dfa
1 file changed