Introduce interfaceName field into TetheringRequestParcel

Bug: 340376953
API-Coverage-Bug: 365678805
Test: Presubmit
Test: atest EthernetTetheringTest
Test: atest TetheringTest
Test: atest NsdManagerDownstreamTetheringTest -b
Test: atest TetheringManagerTest -b

Change-Id: I8025cc2e238b8f9516bf18d8ea0253f1c58a05e6
11 files changed