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/tools/misc/plantuml-server/default.nix

@@ -0,0 +1,28 @@
+{ lib, stdenv, fetchurl }:
+
+let
+  version = "1.2022.2";
+in
+stdenv.mkDerivation rec {
+  pname = "plantuml-server";
+  inherit version;
+  src = fetchurl {
+    url = "https://github.com/plantuml/plantuml-server/releases/download/v${version}/plantuml-v${version}.war";
+    sha256 = "sha256-h4ulXzZ5L+VPhk2CnZQNxfnEJzWT3B9TNvDEWt4o9Hk=";
+  };
+
+  dontUnpack = true;
+  installPhase = ''
+    mkdir -p "$out/webapps"
+    cp "$src" "$out/webapps/plantuml.war"
+  '';
+
+  meta = with lib; {
+    description = "A web application to generate UML diagrams on-the-fly.";
+    homepage = "https://plantuml.com/";
+    sourceProvenance = with sourceTypes; [ binaryBytecode ];
+    license = licenses.gpl3Plus;
+    platforms = platforms.all;
+    maintainers = with maintainers; [ truh ];
+  };
+}