Add Android.bp

Change-Id: Ie582f2481bf07eb1d3dd92df14ae42dad23fc981
diff --git a/Android.bp b/Android.bp
new file mode 100644
index 0000000..e6346b3
--- /dev/null
+++ b/Android.bp
@@ -0,0 +1,18 @@
+// This file is generated by cargo2android.py --device --run.
+
+rust_library {
+    name: "librand_chacha",
+    host_supported: true,
+    crate_name: "rand_chacha",
+    srcs: ["src/lib.rs"],
+    edition: "2018",
+    features: [
+        "default",
+        "simd",
+        "std",
+    ],
+    rustlibs: [
+        "libppv_lite86",
+        "librand_core",
+    ],
+}