Force the app idle state again after whitelisting it.

Whitelisting the app resets forced idle state of an app, so
forcing idle state again.

Bug: 161477606
Test: atest ./hostsidetests/net/src/com/android/cts/net/HostsideRestrictBackgroundNetworkTests.java
Change-Id: Ib57202a68071cc02d6071e0dc2c4780f026ad90b
Merged-In: Ib57202a68071cc02d6071e0dc2c4780f026ad90b
(cherry picked from commit 7c4bb75e1b9fd95f9851e23e370903fc382b493a)
2 files changed
tree: 8834b8b80fe2acb557cf00e9730195f76daa75fa
  1. tests/