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/xml-marshaller/default.nix

@@ -0,0 +1,28 @@
+{ buildPythonPackage
+, fetchPypi
+, lib
+, lxml
+, six
+}:
+
+buildPythonPackage rec {
+  pname = "xml-marshaller";
+  version = "1.0.2";
+
+  src = fetchPypi {
+    pname = "xml_marshaller";
+    inherit version;
+    sha256 = "sha256-QvBALLDD8o5nZQ5Z4bembhadK6jcydWKQpJaSmGqqJM=";
+  };
+
+  propagatedBuildInputs = [ lxml six ];
+
+  pythonImportsCheck = [ "xml_marshaller" ];
+
+  meta = with lib; {
+    description = "This module allows one to marshal simple Python data types into a custom XML format.";
+    homepage = "https://www.python.org/community/sigs/current/xml-sig/";
+    license = licenses.psfl;
+    maintainers = with maintainers; [ mazurel ];
+  };
+}