Merge "rust: Change BinderBindings.h extension to .hpp" am: 094560d10b am: cb85ca8541 am: 1e75f59587 am: 5cba6aa335 am: acca8f720e

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1435651

Change-Id: I47ac9f81b2101cb492636fba841c5f2f2d8a5f11