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/tydra/default.nix

@@ -0,0 +1,34 @@
+{ lib, rustPlatform, fetchFromGitHub, installShellFiles }:
+
+rustPlatform.buildRustPackage rec {
+  pname = "tydra";
+  version = "1.0.2";
+
+  src = fetchFromGitHub {
+    owner = "Mange";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "1kvyski3qy2lwlpipynq894i0g9x2j4a1iy2mgdwfibfyfkv2jnm";
+  };
+
+  cargoSha256 = "0handd5vxxvmlllzxhvwgadl4r7yc78f068r8jryprpap31azg3a";
+
+  nativeBuildInputs = [ installShellFiles ];
+
+  postInstall = ''
+    installManPage doc/{tydra.1,tydra-actions.5}
+
+    $out/bin/tydra --generate-completions bash > tydra.bash
+    $out/bin/tydra --generate-completions fish > tydra.fish
+    $out/bin/tydra --generate-completions zsh > _tydra
+
+    installShellCompletion tydra.{bash,fish} _tydra
+  '';
+
+  meta = with lib; {
+    description = "Shortcut menu-based task runner, inspired by Emacs Hydra";
+    homepage = "https://github.com/Mange/tydra";
+    license = licenses.mit;
+    maintainers = with maintainers; [ Br1ght0ne ];
+  };
+}