Fix netpolicy cts failures due to missing FLAG_ACTIVITY_NEW_TASK.

Bug: 72219677
Test: cts-tradefed run singleCommand cts-dev -m CtsHostsideNetworkTests -t \
      com.android.cts.net.HostsideRestrictBackgroundNetworkTests

Change-Id: I076e10b09f7d8a65120e62ed50afb2d326b62267
1 file changed
tree: 92fb16e17fe0a56f7556fd7dfcd406a7eb39b7be
  1. tests/