Update TEST_MAPPING am: d7bd97eae4 am: 871eb4c7c3 am: d001883707

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/smallvec/+/2108153

Change-Id: I585d8c201986ce8e437e40d6877cc4025c390c92
Signed-off-by: Automerger Merge Worker <[email protected]>