resolve merge conflicts of 87aa822 to master

Change-Id: I7755b30e80965db360998b5554b2860e36273c75
tree: 90f3dc49a110fb07ebe394947c4cf3e2b1af9a02
  1. libwifi_hal/
  2. libwifi_system/
  3. service/
  4. tests/