Merge "Camera: Update API doc for DISPLAY_SYNC timestamp base" into tm-qpr-dev am: 87dd924237

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20056360

Change-Id: I43ec666132de7300943c7fd11a97b27de764ae49
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>