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

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

Change-Id: Id262a244fee335afba74cff94c79f88e8e95e297