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/hjson/default.nix

@@ -0,0 +1,38 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, python
+, pythonImportsCheckHook
+, makeWrapper
+}:
+
+buildPythonPackage rec {
+  pname = "hjson";
+  version = "3.0.2";
+
+  # N.B. pypi src tarball does not have tests
+  src = fetchFromGitHub {
+    owner = "hjson";
+    repo = "hjson-py";
+    rev = "v${version}";
+    sha256 = "1jc7j790rcqnhbrfj4lhnz3f6768dc55aij840wmx16jylfqpc2n";
+  };
+
+  nativeBuildInputs = [ makeWrapper pythonImportsCheckHook ];
+
+  pythonImportsCheck = [ "hjson" ];
+
+  postInstall = ''
+    rm $out/bin/hjson.cmd
+    wrapProgram $out/bin/hjson  \
+      --set PYTHONPATH "$PYTHONPATH" \
+      --prefix PATH : ${lib.makeBinPath [ python ]}
+  '';
+
+  meta = with lib; {
+    description = "A user interface for JSON";
+    homepage = "https://github.com/hjson/hjson-py";
+    license = licenses.mit;
+    maintainers = with maintainers; [ bhipple ];
+  };
+}