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/strenum/default.nix

@@ -0,0 +1,43 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pytestCheckHook
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "strenum";
+  version = "0.4.7";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "irgeek";
+    repo = "StrEnum";
+    rev = "v${version}";
+    hash = "sha256-ktsPROIv/BbPinZfrBknI4c/WwRYGhWgmw209Hfg8EQ=";
+  };
+
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace '"pytest-runner"' ""
+    substituteInPlace pytest.ini \
+      --replace " --cov=strenum --cov-report term-missing --black --pylint" ""
+  '';
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [
+    "strenum"
+  ];
+
+  meta = with lib; {
+    description = "MOdule for enum that inherits from str";
+    homepage = "https://github.com/irgeek/StrEnum";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}