[automerger skipped] Merge "KeyMint: implement getKeyCharacteristics()" into sc-dev am: 43a8733e0c -s ours

am skip reason: Merged-In I4ef15cbb0a09f9b83d5434707f3a285d6012fea0 with SHA-1 a49f3fd34b is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/keymaster/+/14722301

Change-Id: Iedd9ba6efdddcd2e678e366fbc29bb1420c3d844