Migrate cts/tests/tests/net to androidx.test

See go/jetpack-test-android-migration

Test: m -j CtsNetTestCases
Change-Id: I4a76e9b9410f94e297bca4287f450fe3b72fb409
Merged-In: If102677e4cdc4361b5d93283c4d6140dc477a94a
5 files changed
tree: d6761ec8d71909ab4d6b5a1ccdb39bf3c33020da
  1. tests/