Add NetworkStackTests to device-tests suite

It's needed for the test to run in a Test Mapping suite.

Bug: 123544631
Test: local build
Change-Id: I0678a3e8f9beed7c637c1b11594369aa5d3c87bf
1 file changed
tree: 02ef2d685d722c7b8bd364ff77f8c330e9def39f
  1. src/
  2. tests/
  3. Android.bp
  4. AndroidManifest.xml
  5. OWNERS
  6. TEST_MAPPING