This test can not pass in T-Mobile Network becauseT-Mobile
has configured their network to return a "search page" when
the user looks up a name that doesn't exist.
Enable private DNS strict mode before doing testResNApi
Bug: 144521720
Test: atest MultinetworkApiTest
(cherry picked from commit a0d1ae43bf)
Change-Id: Id47045503adb0575c5f9e15fbc732c3c62912a9a