Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: 46d5ad1c7e am: 53809fe6e7 am: a635c6be49

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/libloading/+/1912525

Change-Id: I7b23b285987e75e0eadaad68ea4022ad5c8819ee