Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: 3c69316d95 am: 7edfadee98 am: 72f3e005b9

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/fnv/+/1912520

Change-Id: Id4eac5a1913d3c737b896a7acfd4faf09f5c8a88