Move netlink_listener_test into TrafficControllerTest am: 61e9467fa6 am: a030dc5068 am: f44468377f

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1966618

Change-Id: Ie7e686c3212aac701fb37adb8f5bfe76666b42eb