Try to fix HostsideRestrictBackgroundNetworkTests flakyness.

Bug: 38384021
Test: cts-tradefed run singleCommand cts-dev -m CtsHostsideNetworkTests -t \
      com.android.cts.net.HostsideRestrictBackgroundNetworkTests
Change-Id: I99668396abcf7421cd7ffb9118e309aaecb80f07
4 files changed
tree: 50d85eed173a4ae622c0850b6952cc909386a12f
  1. tests/