Logging life cycle of each test

It's helpful for debugging each test to observe the behavior
between each test.

Sample log:
I netd_unit_test: started: BandwidthControllerTest#TestSetupIptablesHooks
I netd_unit_test: finished: BandwidthControllerTest#TestSetupIptablesHooks

Bug: 223731710
Test: cd system/netd then atest
Change-Id: I7e50c8393f0ffe1a9f37abc6dbfc7be0cdbb8285
9 files changed
tree: 1bd7881e32706febb68849c8373caea1455f2770
  1. client/
  2. include/
  3. netutils_wrappers/
  4. server/
  5. tests/
  6. .editorconfig
  7. Android.bp
  8. NOTICE
  9. OWNERS
  10. PREUPLOAD.cfg
  11. TEST_MAPPING