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/wayland/ydotool/default.nix

@@ -0,0 +1,29 @@
+{ lib, stdenv, fetchFromGitHub, cmake, scdoc, util-linux }:
+
+stdenv.mkDerivation rec {
+  pname = "ydotool";
+  version = "1.0.1";
+
+  src = fetchFromGitHub {
+    owner = "ReimuNotMoe";
+    repo = "ydotool";
+    rev = "v${version}";
+    sha256 = "sha256-maXXGCqB8dkGO8956hsKSwM4HQdYn6z1jBFENQ9sKcA=";
+  };
+
+  strictDeps = true;
+  nativeBuildInputs = [ cmake scdoc ];
+
+  postInstall = ''
+    substituteInPlace ${placeholder "out"}/lib/systemd/user/ydotool.service \
+      --replace /usr/bin/kill "${util-linux}/bin/kill"
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/ReimuNotMoe/ydotool";
+    description = "Generic Linux command-line automation tool";
+    license = licenses.agpl3Plus;
+    maintainers = with maintainers; [ willibutz kraem ];
+    platforms = with platforms; linux;
+  };
+}