Merge "[binder] Expose public Rust API at crate top level" am: 897aab34f8 am: 27c97b6476 am: fc1866db39

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1797473

Change-Id: I195a48ef2efe8d2bd3f9d80adcb524e585ae45d7