Merge "KeyMint HALs: clarifications" am: 46f99f4e9a am: ee63e2489a am: 5ad931e0a6 am: 8e99dca617 am: 9cd84e53dd

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1846278

Change-Id: Ie8f26113d500a12c00f29b34a8cd1b396eb239d6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>