Merge "Camera: Clarify timestamp behavior for VIDEO_RECORD usage flag" into rvc-dev am: 26bf8c7aa0 am: 2f875cc89d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12002522

Change-Id: I8ed4446e4b5d199ddaf8aa2cf4a743a8b25cde1b