resolve merge conflicts of 87d6438 to master

Change-Id: Ifbadd9f6d58e208f32efb1bcce350796b84d8a82
tree: 016b9a3a426eaf9bc3942121fdf25a9192d2cd65
  1. libwifi_hal/
  2. libwifi_system/
  3. service/
  4. tests/