Merge "libbinder_ndk: stronger APEX stability wording" am: c96e51046c am: 8584220792 am: 11a7d64c4c

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1656231

Change-Id: Ia3d48efd1ac30215d6dd5450d7cda25e9c703b36