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/pytest-twisted/default.nix

@@ -0,0 +1,29 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, greenlet
+, pytest
+, decorator
+}:
+
+buildPythonPackage rec {
+  pname = "pytest-twisted";
+  version = "1.13.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    extension = "zip";
+    sha256 = "cee2320becc5625050ab221b8f38533e636651a24644612f4726891fdf1f1847";
+  };
+
+  buildInputs = [ pytest ];
+
+  propagatedBuildInputs = [ greenlet decorator ];
+
+  meta = with lib; {
+    description = "A twisted plugin for py.test";
+    homepage = "https://github.com/pytest-dev/pytest-twisted";
+    license = licenses.bsd3;
+    maintainers = [ maintainers.marsam ];
+  };
+}