Refresh Android.bp, cargo2android.json, TEST_MAPPING.

Test: None
Change-Id: I17897024dfbe812439a43cb226853e1794a30907
diff --git a/cargo2android.json b/cargo2android.json
new file mode 100644
index 0000000..d36fb44
--- /dev/null
+++ b/cargo2android.json
@@ -0,0 +1,5 @@
+{
+  "device": true,
+  "run": true,
+  "tests": true
+}
\ No newline at end of file