Merge "Revert^2 "[binder] Expose public Rust API at crate top level"" am: 8ed347f682 am: 13e1cbb303 am: de330d5704 am: b0c4c748d6

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1954498

Change-Id: I9985d8597ee18b94bcc10e81471ee072e3ee70b1