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/dataclasses-json/default.nix

@@ -0,0 +1,41 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, typing-inspect
+, marshmallow-enum
+, hypothesis
+, mypy
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "dataclasses-json";
+  version = "0.5.7";
+
+  src = fetchFromGitHub {
+    owner = "lidatong";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "1xv9br6mm5pcwfy10ykbc1c0n83fqyj1pa81z272kqww7wpkkp6j";
+  };
+
+  propagatedBuildInputs = [
+    typing-inspect
+    marshmallow-enum
+  ];
+
+  checkInputs = [
+    hypothesis
+    mypy
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [ "dataclasses_json" ];
+
+  meta = with lib; {
+    description = "Simple API for encoding and decoding dataclasses to and from JSON";
+    homepage = "https://github.com/lidatong/dataclasses-json";
+    license = licenses.mit;
+    maintainers = with maintainers; [ albakham ];
+  };
+}