Update CTS for unsupported legacy ConnectivityManager APIs

http://ag/736511 made the deprecated ConnectivityManager routing
APIs {start,stop}UsingNetworkFeature and requestRouteToHost throw
exceptions for apps whose target SDK version is 23 or above. Move
the tests for these APIs to a new APK that targets SDK version 22
and update the current test APK to ensure that they throw an

Bug: 22977863
Bug: 23003441
Bug: 23003635
Change-Id: Icf58e928fdc0018d977ce8aa315866659d32debb
5 files changed