Update Android.bp by running cargo_embargo

Test: ran cargo_embargo
Change-Id: I7c0036389fc262d1e90f1ef48117d9d4b76c5ad2
diff --git a/Android.bp b/Android.bp
index a881753..0e8f6fd 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,5 +1,6 @@
 // This file is generated by cargo_embargo.
-// Do not modify this file as most changes will be overridden on upgrade.
+// Do not modify this file after the first "rust_*" or "genrule" module
+// because the changes will be overridden on upgrade.
 // Content before the first "rust_*" or "genrule" module is preserved.
 
 package {
@@ -44,7 +45,7 @@
     crate_name: "tempfile",
     cargo_env_compat: true,
     cargo_pkg_version: "3.3.0",
-    srcs: ["src/lib.rs"],
+    crate_root: "src/lib.rs",
     edition: "2018",
     rustlibs: [
         "libcfg_if",