[Suggestion] block setting insecure enterprise config

If App set insecure enterprise config to suggestion builder, an
exception will be raised.

Bug: 157822251
Test: atest android.net.wifi
Change-Id: I2e7a2421be2c1574801b853a1dddaff1d115a1b2
4 files changed
tree: c86bd6facce4468e37f760fc0e51382e5672dca3
  1. framework/
  2. OsuLogin/
  3. OWNERS