Merge "Clarify measurement interval documentation" into tm-dev am: 58178fd1b7 am: c3bea771fe

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

Change-Id: I4e692583198f5c0022612edd400efc4048cca33b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>