Merge "Add Wifi HAL supplicant AIDL interface definitions." am: a798cf2c63 am: dc3be74728 am: 7b93d69e16

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1916957

Change-Id: I62c90daf1822e00cc3b7a96f50eec09ec81559fd