Update Android.bp by running cargo_embargo

Test: ran cargo_embargo
Change-Id: Ib77dbcb7667697eb6b0a968e0c9998ee574b3272
diff --git a/Android.bp b/Android.bp
index 9ccc9c1..5dbd6c9 100644
--- a/Android.bp
+++ b/Android.bp
@@ -46,7 +46,7 @@
     crate_name: "byteorder",
     cargo_env_compat: true,
     cargo_pkg_version: "1.4.3",
-    srcs: ["src/lib.rs"],
+    crate_root: "src/lib.rs",
     edition: "2018",
     features: [
         "default",
@@ -65,7 +65,7 @@
     crate_name: "byteorder",
     cargo_env_compat: true,
     cargo_pkg_version: "1.4.3",
-    srcs: ["src/lib.rs"],
+    crate_root: "src/lib.rs",
     edition: "2018",
     apex_available: [
         "//apex_available:platform",