Add some debugs to diagnose test failure.

Bug: 218308105
Test: atest com.android.cts.net.HostsideRestrictBackgroundNetworkTests
Change-Id: I096258d8c55cf56478015a655b5f3be19f29ace1
Merged-In: I096258d8c55cf56478015a655b5f3be19f29ace1
2 files changed