[Wi-Fi] Fix Wi-Fi broken tests

Bug: 150910070
Test: make RunSettingsRoboTests -j ROBOTEST_FILTER=com.android.settings.wifi
Change-Id: Ie9b9384610857e2999fe4642a93c2d31ce3315f3
Merged-In: Ie9b9384610857e2999fe4642a93c2d31ce3315f3
4 files changed