Use TEST_MAPPING imports for third-party crate tests. am: 4a08c64965 am: d028c9b4b1 am: ee68366e6e am: 2cd2a7c710

Original change: https://android-review.googlesource.com/c/platform/development/+/1858469

Change-Id: Icfde1032ad4e65612f1054c544cb631ac5927936