uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/tools/rust/devserver/default.nix

@@ -0,0 +1,31 @@
+{ lib
+, stdenv
+, fetchCrate
+, rustPlatform
+, openssl
+, pkg-config
+, CoreServices
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "devserver";
+  version = "0.4.0";
+
+  src = fetchCrate {
+    inherit pname version;
+    sha256 = "sha256-UcrLzsALwl0zqNRMS1kTTXsR6wN8XDd5Iq+yrudh6M4=";
+  };
+
+  nativeBuildInputs = [ pkg-config ];
+
+  buildInputs = [ openssl ] ++ lib.optional stdenv.isDarwin CoreServices;
+
+  cargoSha256 = "sha256-XlrQ6CvjeWnzvfaeNbe8FtMXMVSQNLxDVIEjyHm57Js=";
+
+  meta = with lib; {
+    description = "An extremely tiny tool to serve a static folder locally";
+    homepage = "https://github.com/kettle11/devserver";
+    license = licenses.zlib;
+    maintainers = with maintainers; [ nickhu ];
+  };
+}