Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: 777d7ee8d2

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/grpcio-compiler/+/1912692

Change-Id: Ib44f92d791f4ea0585cba41b1b0d6d50cba3e2eb