WifiVendorHal: replace output parameters with return values

Bug: 172086124
Test: atest FrameworksWifiTests
Change-Id: I4432e1f77cff78e057b8f8eda0eeb2f8672efd8e
12 files changed
tree: 15e06d8e620728df6ebb7f8f2c931050b5faeadd
  1. apex/
  2. service/
  3. metrics_pdd_hook.py
  4. PREUPLOAD.cfg