Implement alternate SE root-of-trust provisioning. am: fdeafb864c am: 391b2ca3fe

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/keymaster/+/18638885

Change-Id: Ieb228f130042e6d0440dda3449d66c98788a7a1e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>