Add Android.bp

Test: Build
Change-Id: Ib4a10069db753373d73924cf149b4d27dde51e8f
diff --git a/Android.bp b/Android.bp
new file mode 100644
index 0000000..c147fea
--- /dev/null
+++ b/Android.bp
@@ -0,0 +1,9 @@
+// This file is generated by cargo2android.py --device --run --dependencies.
+
+rust_library {
+    name: "libweak_table",
+    host_supported: true,
+    crate_name: "weak_table",
+    srcs: ["src/lib.rs"],
+    edition: "2018",
+}