Update wifi test util with better styles and to utilize new ACTS
features.

Add a retry option for wifi_connect.

Resolve any descrepancy in Wi-Fi code between internal master and
AOSP.

Bug=27821528
Bug=28342613

Change-Id: I77dc14cb5d6f72c4a538745e7acf0013702009d6
7 files changed
tree: 09e3301ebbe4e6c467845f6f09841cd105a35fb8
  1. acts/