Generate license header with cargo_embargo.

Bug: 333524428
Test: Ran cargo_embargo, compared Android.bp.
Change-Id: I568eb85f9e219c9aaa6396f14a07b566817c7834
diff --git a/Android.bp b/Android.bp
index 6e8219f..c761c31 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,23 +1,15 @@
 // 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_argh_license"],
 }
 
-// Added automatically by a large-scale-change
-// See: http://go/android-license-faq
 license {
     name: "external_rust_crates_argh_license",
     visibility: [":__subpackages__"],
-    license_kinds: [
-        "SPDX-license-identifier-BSD",
-    ],
-    license_text: [
-        "LICENSE",
-    ],
+    license_kinds: ["SPDX-license-identifier-BSD-3-Clause"],
+    license_text: ["LICENSE"],
 }
 
 rust_test {