Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: 60bc21aeb1 am: 1ac2dbfc10

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/memchr/+/1912501

Change-Id: Ida7657622e4a472147fd7d562b5f130d41108181