Clarify new Choreographer Android 13 NDK docs. am: a4aba5d7dd

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

Change-Id: Ic002a00daa3d84773e30cd47ce452c937e696d99
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>