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/unicode-slugify/default.nix

@@ -0,0 +1,29 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, nose
+, six
+, unittest2
+, unidecode
+}:
+
+buildPythonPackage rec {
+  pname = "unicode-slugify";
+  version = "0.1.5";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "25f424258317e4cb41093e2953374b3af1f23097297664731cdb3ae46f6bd6c3";
+  };
+
+  propagatedBuildInputs = [ six unidecode ];
+
+  checkInputs = [ nose unittest2 ];
+
+  meta = with lib; {
+    description = "Generates unicode slugs";
+    homepage = "https://pypi.org/project/unicode-slugify/";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ mmai ];
+  };
+}