Upgrade rust/crates/protobuf to 2.25.1

Test: make
Change-Id: I246706ce9d2c30010727a7066b16555e8d52ea57
diff --git a/Android.bp b/Android.bp
index babd7e3..4a21761 100644
--- a/Android.bp
+++ b/Android.bp
@@ -29,6 +29,8 @@
     name: "libprotobuf",
     host_supported: true,
     crate_name: "protobuf",
+    cargo_env_compat: true,
+    cargo_pkg_version: "2.25.1",
     srcs: [
         "src/lib.rs",
         ":copy_protobuf_build_out",
@@ -43,6 +45,3 @@
         "com.android.virt",
     ],
 }
-
-// dependent_library ["feature_list"]
-//   bytes-1.0.1 "default,std"