Clarify new Choreographer Android 13 NDK docs. am: a4aba5d7dd

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

Change-Id: I1c948b062e993f89c9f36ba69c527bb167284091
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>