Collect cnss diag logs when failed for wifi related tests

This CL has below changes:
- Add codes of cnss diag collection for wifi base test classes
  (WifiBaseTest, WifiP2pBaseTest, AwareBaseTest, RttBaseTest)
- Add function calls for wifi test classes to collect cnss diag
  logs when test failed

Bug: 165446308
Test: Run affected tests
Change-Id: I0010055723f4225a91d3d99f1ac2dc1522aaba5b
41 files changed
tree: 37ac07bc484e5b4ce872d777a948814131baaf4e
  1. acts/
  2. acts_tests/
  3. tools/
  4. wts-acts/
  5. Android.mk
  6. OWNERS
  7. PREUPLOAD.cfg