Update Android.bp by running cargo_embargo

Test: ran cargo_embargo
Change-Id: Ic5d9f00db12e7d4df4a0f5097523966066f0e8d1
diff --git a/Android.bp b/Android.bp
index 9489851..4283a28 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,7 +1,16 @@
 // This file is generated by cargo_embargo.
-// 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.
+// Do not modify this file because the changes will be overridden on upgrade.
+
+package {
+    default_applicable_licenses: ["external_rust_crates_toml_license"],
+}
+
+license {
+    name: "external_rust_crates_toml_license",
+    visibility: [":__subpackages__"],
+    license_kinds: ["SPDX-license-identifier-Apache-2.0"],
+    license_text: ["LICENSE"],
+}
 
 rust_library_host {
     name: "libtoml",