Merge "Choreographer: add a trace for vsync callback" into udc-dev am: 854b864e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/21562451



Change-Id: Ie8dceee10d7dd059abf554f4e1ed100d3ed7d57d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>