1. Only support EAP-TLS for WPA3-Enterprise 192-bit
2. Remove "Do not validate" from the CA certificate menu
3. Remove "Do not provide" from user certificate menu
To reduce review effort, I left refine code change in another CL.
Bug: 135127581
Test: WifiConfigControllerTest
Change-Id: Ibf904da9407ec803afb8bb995e9df1a2e25f0dcb