Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: a60fd84280

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/futures-core/+/1912602

Change-Id: I8e6d53fccb6fa96d2a34b0f2fa21304c3e6aedb5