Update Android.bp by running cargo_embargo

Test: ran cargo_embargo
Change-Id: Iaae0c6f259dd16fafbcc9096546ae78a9dde19c9
diff --git a/Android.bp b/Android.bp
index c6d0cdb..e46f0c3 100644
--- a/Android.bp
+++ b/Android.bp
@@ -24,7 +24,7 @@
     crate_name: "merge",
     cargo_env_compat: true,
     cargo_pkg_version: "0.1.0",
-    srcs: ["src/lib.rs"],
+    crate_root: "src/lib.rs",
     edition: "2018",
     features: [
         "default",