Modify the URL_FILTERED logic and fix issue in URL_SIM_APN_LIST

1. The logic in URL_FILTERED will same as URL_SIM_APN_LIST but filtered
by OWNED_BY_DPC.
2. Add permission check and null check in URL_SIM_APN_LIST

Bug: 115709816
Test: run TelephonyProviderTest
Change-Id: Id70cdc48ce5a7393f8f5555f5914d37ad5875883
2 files changed