Fix test initialization errors on Q

ConnectivityDiagnosticsManagerTest, MultinetworkApiTest,
NetworkAgentTest crashed before the runner could start them:
 - Ignore ConnectivityDiagnosticsManagerTest on Q: it tests an API that
   was introduced in R.
 - Build JNI libraries used by MultinetworkApiTest against the NDK to
   avoid errors loading the libraries on older platforms, when
   transitive dependencies have been added.
 - Do not attempt to override Handler#getLooper() (which is final) in
   NetworkAgentTest; it appears to have been overridden by accident by
   specifying "val looper" in the TestableNetworkAgent definition, which
   generates a getter.

Test: atest CtsNetTestCasesLatestSdk:ConnectivityDiagnosticsManagerTest
      atest CtsNetTestCasesLatestSdk:MultinetworkApiTest
      atest CtsNetTestCasesLatestSdk:NetworkAgentTest
Bug: 150918852
Change-Id: I262b54c6897ed755adaeb2b118c638320634f7a1
5 files changed
tree: 207d9ada7e662fcd9e4595879ede7b92bdf5a289
  1. tests/