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/dparse/default.nix

@@ -0,0 +1,42 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, isPy27
+, toml
+, pyyaml
+, packaging
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "dparse";
+  version = "0.5.1";
+  disabled = isPy27;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "a1b5f169102e1c894f9a7d5ccf6f9402a836a5d24be80a986c7ce9eaed78f367";
+  };
+
+  propagatedBuildInputs = [
+    toml
+    pyyaml
+    packaging
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  disabledTests = [
+    # requires unpackaged dependency pipenv
+    "test_update_pipfile"
+  ];
+
+  meta = with lib; {
+    description = "A parser for Python dependency files";
+    homepage = "https://github.com/pyupio/dparse";
+    license = licenses.mit;
+    maintainers = with maintainers; [ thomasdesr ];
+  };
+}