Add support for TAP interfaces in TestNetworkManager.

Bug: 72950854
Test: builds, boots
Change-Id: I88bfd7f37c0ba0228f8288fe92212618ce134e4f
Merged-In: I88bfd7f37c0ba0228f8288fe92212618ce134e4f
(cherry picked from commit ba2eb5e0621c4f2a2c86a641998b4ae1953ae4b8)
5 files changed