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/django-configurations/default.nix

@@ -0,0 +1,67 @@
+{ lib
+, buildPythonPackage
+, dj-database-url
+, dj-email-url
+, dj-search-url
+, django
+, django-cache-url
+, django-discover-runner
+, fetchPypi
+, importlib-metadata
+, mock
+, pythonOlder
+, setuptools-scm
+}:
+
+buildPythonPackage rec {
+  pname = "django-configurations";
+  version = "2.3.2";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "bd1a77a60735839b7d105912cc3977735fa005ea06544c632fbd322d1e021677";
+  };
+
+  buildInputs = [
+    setuptools-scm
+  ];
+
+  propagatedBuildInputs = [
+    django
+  ] ++ lib.optionals (pythonOlder "3.8") [
+    importlib-metadata
+  ];
+
+  checkInputs = [
+    django-discover-runner
+    mock
+    dj-database-url
+    dj-email-url
+    dj-search-url
+    django-cache-url
+  ];
+
+  checkPhase = ''
+    export PYTHONPATH=.:$PYTHONPATH
+    export DJANGO_SETTINGS_MODULE="tests.settings.main"
+    export DJANGO_CONFIGURATION="Test"
+    ${django}/bin/django-admin.py test
+  '';
+
+  # django.core.exceptions.ImproperlyConfigured: django-configurations settings importer wasn't correctly installed
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "configurations"
+  ];
+
+  meta = with lib; {
+    description = "A helper for organizing Django settings";
+    homepage = "https://django-configurations.readthedocs.io/";
+    license = licenses.bsd0;
+    maintainers = with maintainers; [ costrouc ];
+  };
+}