Keystore 2.0: Use preferred KM instance for level zero key.

Prefer KM4.1 and higher over KM4.0 and lower, but prefer TEE over
Strongbox if TEE meets the minimal requirements.

Ignore-AOSP-First: No automerge path from AOSP.
Bug: 187862706
Test: Manually tested by observing logs during boot.
Merged-In: I1d27c80ef7c869b84b6d0c1a5d8eec287c242f6c
Change-Id: I1d27c80ef7c869b84b6d0c1a5d8eec287c242f6c
Merged-In: I1d27c80ef7c869b84b6d0c1a5d8eec287c242f6c
3 files changed