Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: 270d389bbe am: fde697d305 am: 5cc6420f07 am: e0f6133322

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/unicode-segmentation/+/1912509

Change-Id: Ia935eab184ca33013c2b22f61850c736ee066434