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/jsonref/default.nix

@@ -0,0 +1,26 @@
+{ lib, buildPythonPackage, fetchPypi
+, pytest, mock }:
+
+buildPythonPackage rec {
+  pname = "jsonref";
+  version = "0.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "15v69rg2lkcykb2spnq6vbbirv9sfq480fnwmfppw9gn3h95pi7k";
+  };
+
+  checkInputs = [ pytest mock ];
+
+  checkPhase = ''
+    py.test tests.py
+  '';
+
+  meta = with lib; {
+    description = "An implementation of JSON Reference for Python";
+    homepage    = "https://github.com/gazpachoking/jsonref";
+    license     = licenses.mit;
+    maintainers = with maintainers; [ ];
+    platforms   = platforms.all;
+  };
+}