Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: 3f61f20aa3

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/num-integer/+/1912610

Change-Id: I1c3e6daeac2f4a7f8a2fd99e71eaa64a62b7f40d