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/security/nitrokey-app/udev-rules.nix

@@ -0,0 +1,20 @@
+{ lib, stdenv, nitrokey-app }:
+
+
+stdenv.mkDerivation {
+  name = "nitrokey-udev-rules-${lib.getVersion nitrokey-app}";
+
+  inherit (nitrokey-app) src;
+
+  dontBuild = true;
+
+  installPhase = ''
+    mkdir -p $out/etc/udev/rules.d
+    cp libnitrokey/data/41-nitrokey.rules $out/etc/udev/rules.d
+  '';
+
+  meta = {
+    description = "udev rules for Nitrokeys";
+    inherit (nitrokey-app.meta) homepage license maintainers;
+  };
+}