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/python-modules/xdg/default.nix

@@ -0,0 +1,34 @@
+{ lib, buildPythonPackage, fetchFromGitHub, isPy27
+, clikit
+, poetry-core
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  version = "5.1.1";
+  pname = "xdg";
+  disabled = isPy27;
+  format = "pyproject";
+
+  src = fetchFromGitHub {
+    owner = "srstevenson";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-z/Zvo2WGw9qA+M3Pt9r35DuxtuhL7/I75LlFEdDOJcc=";
+  };
+
+  nativeBuildInputs = [ poetry-core ];
+
+  propagatedBuildInputs = [
+    clikit
+  ];
+
+  checkInputs = [ pytestCheckHook ];
+
+  meta = with lib; {
+    description = "XDG Base Directory Specification for Python";
+    homepage = "https://github.com/srstevenson/xdg";
+    license = licenses.isc;
+    maintainers = with maintainers; [ jonringer ];
+  };
+}