Clarify new Choreographer Android 13 NDK docs. am: a4aba5d7dd

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/19775140

Change-Id: Ie6aa47c375f59647fa7027aa1fa5654cf995eb9e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>