Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: 935e163a3f am: a6c9e9aef6 am: fc4485b7a0 am: bf7a0a3b0f

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/walkdir/+/1912799

Change-Id: Ifcd105e140c6122c19c3b66f46768c6a344b5443