Merge "Keystore 2.0: Implement convertStorageKeyToEphemeral() in AndroidKeyMintDevice" am: ed1ece62e3 am: c794beeaac am: 9798237e3e

Original change: https://android-review.googlesource.com/c/platform/system/keymaster/+/1622926

Change-Id: Ie8b5c2a2b8f2bfcfde302c964f42a6791a0ce5a5