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/yapf/default.nix

@@ -0,0 +1,46 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, nose
+}:
+
+buildPythonPackage rec {
+  pname = "yapf";
+  version = "0.32.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-o/UIXTfvfj4ATEup+bPkDFT/GQHNER8FFFrjE6fGfRs=";
+  };
+
+  checkInputs = [
+    nose
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/google/yapf";
+    description = "Yet Another Python Formatter";
+    longDescription = ''
+      Most of the current formatters for Python --- e.g., autopep8, and pep8ify
+      --- are made to remove lint errors from code. This has some obvious
+      limitations. For instance, code that conforms to the PEP 8 guidelines may
+      not be reformatted. But it doesn't mean that the code looks good.
+
+      YAPF takes a different approach. It's based off of 'clang-format',
+      developed by Daniel Jasper. In essence, the algorithm takes the code and
+      reformats it to the best formatting that conforms to the style guide, even
+      if the original code didn't violate the style guide. The idea is also
+      similar to the 'gofmt' tool for the Go programming language: end all holy
+      wars about formatting - if the whole codebase of a project is simply piped
+      through YAPF whenever modifications are made, the style remains consistent
+      throughout the project and there's no point arguing about style in every
+      code review.
+
+      The ultimate goal is that the code YAPF produces is as good as the code
+      that a programmer would write if they were following the style guide. It
+      takes away some of the drudgery of maintaining your code.
+    '';
+    license = licenses.asl20;
+    maintainers = with maintainers; [ AndersonTorres siddharthist ];
+  };
+}