TTLS client: Support phase2_auth=2 am: e45d2dc09a

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/wpa_supplicant_8/+/24167394

Change-Id: I8a81237ecb136ff5485192b8798197bf63050214
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>