Merge "Make libfutures_util available to DnsResolver" am: 590d610b24 am: 97518d13e2 am: 7284bcf90a

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/futures-util/+/1742913

Change-Id: I9ced4d31ebc6c87092134dbe15c57b8ec37e3ad8