Update TEST_MAPPING am: 588b5e97bc am: 4a27cd9be6 am: bf1e80fe6d am: 42de17e367 am: a4f2f96216

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/libloading/+/1806084

Change-Id: If2644ff7cfea01d949a68ae9b0d017bd3e8ad98b