Skip selected Telecom tests if there's no Telephony

Bug: 335373774
Bug: 350642164
Test: atest android.telecom.cts.BackgroundCallAudioTest
Test: atest android.telecom.cts.CallRedirectionServiceTest
Test: atest android.telecom.cts.ExtendedInCallServiceTest
Test: atest android.telecom.cts.ExternalCallTest
Test: atest android.telecom.cts.TelecomManagerTest
Test: atest CtsTelecomTestCases
Change-Id: I8caa41c8eb8bea5dc203af60aaa027610f128053
(cherry picked from commit 083f8b938c992bcbfed79661b93e6ceb1be86b49)
Merged-In: I8caa41c8eb8bea5dc203af60aaa027610f128053