Allow EAP-SIM authentication methods under PEAP

Extend the PEAP outer method to contain EAP-SIM innner methods
so these transactions can be encrypted.

Cherry-pick of 68c63024c2ace87921c1e84a99d18dae6001c74c

Bug: 34835771
Test: Unit tests

Change-Id: I4931ed43e396c93bad0bfce1750291982f8cd146
5 files changed