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/aenum/default.nix

@@ -0,0 +1,42 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, isPy3k
+, pyparsing
+, python
+}:
+
+buildPythonPackage rec {
+  pname = "aenum";
+  version = "3.1.11";
+  format = "setuptools";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-rtLCc1R65yoNXuhpcZwCpkPaFr9QfICVj6rcfgOOP3M=";
+  };
+
+  checkInputs = [
+    pyparsing
+  ];
+
+  # py2 likes to reorder tests
+  doCheck = isPy3k;
+
+  checkPhase = ''
+    runHook preCheck
+    ${python.interpreter} aenum/test.py
+    runHook postCheck
+  '';
+
+  pythonImportsCheck = [
+    "aenum"
+  ];
+
+  meta = with lib; {
+    description = "Advanced Enumerations (compatible with Python's stdlib Enum), NamedTuples, and NamedConstants";
+    homepage = "https://github.com/ethanfurman/aenum";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ vrthra ];
+  };
+}