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/yamlfix/default.nix

@@ -0,0 +1,50 @@
+{ lib
+, buildPythonPackage
+, click
+, fetchFromGitHub
+, pytest-xdist
+, pytestCheckHook
+, pythonOlder
+, ruyaml
+}:
+
+buildPythonPackage rec {
+  pname = "yamlfix";
+  version = "0.8.2";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "lyz-code";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-YCC4xK1fB5Gyv32JhbSuejtzLNMRnH7iyUpzccVijS0=";
+  };
+
+  propagatedBuildInputs = [
+    click
+    ruyaml
+  ];
+
+  checkInputs = [
+    pytest-xdist
+    pytestCheckHook
+  ];
+
+  postPatch = ''
+    substituteInPlace pyproject.toml \
+      --replace 'python_paths = "."' ""
+  '';
+
+  pythonImportsCheck = [
+    "yamlfix"
+  ];
+
+  meta = with lib; {
+    description = "Python YAML formatter that keeps your comments";
+    homepage = "https://github.com/lyz-code/yamlfix";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ koozz ];
+  };
+}