Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: 99dc3539da am: 12984bfa87 am: a6eda40d4c

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/structopt-derive/+/1912697

Change-Id: I46aa739214dfd727217076068bd4efc563b14f3f