Update Android.bp by running cargo_embargo

Test: ran cargo_embargo
Change-Id: I5271f9a289c3cc00c304a27c6f2c127568f127be
diff --git a/Android.bp b/Android.bp
index 64fe35b..a495a5a 100644
--- a/Android.bp
+++ b/Android.bp
@@ -44,7 +44,7 @@
     crate_name: "litrs",
     cargo_env_compat: true,
     cargo_pkg_version: "0.3.0",
-    srcs: ["src/lib.rs"],
+    crate_root: "src/lib.rs",
     edition: "2018",
     features: [
         "default",