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

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

Change-Id: I2d6b39721d5ccfea754ea8f2650e5051608500a4