Exclude lingering traffic from loopback iface stats check

Lingering traffic from previous tests are only happens in
non-loopback interface. Stats gets from loopback interface
would not see them. Thus, exclude them from in-range check.

Test: atest TrafficStatsTest --rerun-until-failure 100
Bug: 164965653
Change-Id: Ic15c4c2e27f86b5711ada904c22734206c67d671
1 file changed
tree: 758c4f181f33ac896cf4c74240b2ae25afa35735
  1. tests/
  2. Tethering/