[automerger skipped] Correct the description for getKeyCharacteristics am: 8b78dc5031 -s ours

am skip reason: Merged-In I3ff94201c262a5071d271b150dbbf21888d678aa with SHA-1 fa3d38d206 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/15175667

Change-Id: I08b93ec35f99fd5f3173e356a8e4f48333757230