Rename "long running" to "overtime".

Use "overtime job" instead of "long running" to refer to jobs that
have been running longer than their minimum execution timeout and
are thus running in overtime to avoid naming collision with new long
running job features.

Bug: 141645789
Test: Android builds
Change-Id: I7298f69aa16a422c9887b07a51d1f53314635978
5 files changed