Clarify new Choreographer Android 13 NDK docs. am: a4aba5d7dd am: 8d058c5ced

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

Change-Id: I2df8dcad49977c3c77cfd86767d68e34ec9d465d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>