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/protego/default.nix

@@ -0,0 +1,30 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, six
+, pytest
+}:
+
+buildPythonPackage rec {
+  pname = "Protego";
+  version = "0.2.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-32ZtQwTat3Ti3J/rIIuxrI1x6lzuwS9MmeujD71kL/I=";
+  };
+  propagatedBuildInputs = [ six ];
+
+  checkInputs = [ pytest ];
+
+  checkPhase = ''
+    pytest tests
+  '';
+
+  meta = with lib; {
+    description = "A pure-Python robots.txt parser with support for modern conventions";
+    homepage = "https://github.com/scrapy/protego";
+    license = licenses.bsd3;
+    maintainers = [ maintainers.marsam ];
+  };
+}