Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: c5221907e5 am: c331235859 am: 4c5d078b87

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/regex/+/1912795

Change-Id: Ib65575ed54842edf0e17b480c2428296d243a5f3