Merge "Add more clarity about integer encoding for keys" am: 7a15fa5005 am: 21326838d0 am: cedd7bc23f

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2378099

Change-Id: Ia58cf871593107fb503ae24efd3f6e68ea791674
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>