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/decopatch/default.nix

@@ -0,0 +1,48 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, makefun
+, setuptools-scm
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "decopatch";
+  version = "1.4.10";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-lX9JyT9BUBgsI/j7UdE7syE+DxenngnIzKcFdZi1VyA=";
+  };
+
+  nativeBuildInputs = [
+    setuptools-scm
+  ];
+
+  propagatedBuildInputs = [
+    makefun
+  ];
+
+  postPatch = ''
+    substituteInPlace setup.cfg \
+      --replace "pytest-runner" ""
+  '';
+
+  pythonImportsCheck = [
+    "decopatch"
+  ];
+
+  # Tests would introduce multiple cirucular dependencies
+  # Affected: makefun, pytest-cases
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Python helper for decorators";
+    homepage = "https://github.com/smarie/python-decopatch";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ fab ];
+  };
+}