Car Settings App: Added WPA3 SAE option

add an option in WiFi tether security preference: WPA3-SAE
converted relavent robotest to unit test and modified them to test WPA3 option.
added/removed resources related to WiFi tether security preference.

Bug: 215462293
Test: Manual - tested on hardware and added unit test

Change-Id: If381e710cd1e0f0ced7e8f15e039b6a8fa11b8a6
6 files changed