Merge "Implement AsRawFd trait for ParcelFileDescriptor" am: 385a3a02d0 am: e409e87f0a am: 6f40ada09e

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1789493

Change-Id: Idaeb2c26d04fe1ad43051683544dd9a336db0325