Keystore 2.0: Add back dependency on KeyMint AIDL spec.

We are using SecurityLevel, KeyParameter, and HardwareAuthenticatorType
from the KeyMint spec now, instead of defining our own versions of these
types.

Test: keystore2_test
Change-Id: I0080382cb3619f7153ea3a6e49bb7b5f4b23f15b
4 files changed