Merge "Update TEST_MAPPING" am: ac64fb1896

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/libloading/+/2125847

Change-Id: I733ccf50f3fcabee4838770d7977784239fad40d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>