Refresh Android.bp, cargo2android.json, TEST_MAPPING.

Test: None
Change-Id: Ie24fa94ff7698996eab679bae252695280f15f57
diff --git a/cargo2android.json b/cargo2android.json
new file mode 100644
index 0000000..a0f1a8e
--- /dev/null
+++ b/cargo2android.json
@@ -0,0 +1,5 @@
+{
+  "copy-out": true,
+  "features": "runtime,clang_10_0",
+  "run": true
+}
\ No newline at end of file