Merge "Clarify measurement interval documentation" into tm-dev am: 58178fd1b7 am: fc27380b8f am: f07ee740f9

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/17988968

Change-Id: If63425141133c90370d5cfe4304b24019de175d1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>