Merge "Clarify measurement interval documentation" into tm-dev am: 58178fd1 am: d2c7c79d

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



Change-Id: I45082e26af34cc786383ba8bb52f5d1565274211
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>