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/pydispatcher/default.nix

@@ -0,0 +1,28 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pytest
+}:
+
+buildPythonPackage rec {
+  version = "2.0.5";
+  pname = "pydispatcher";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1bswbmhlbqdxlgbxlb6xrlm4k253sg8nvpl1whgsys8p3fg0cw2m";
+  };
+
+  checkInputs = [ pytest ];
+
+  checkPhase = ''
+    py.test
+  '';
+
+  meta = with lib; {
+    homepage = "http://pydispatcher.sourceforge.net/";
+    description = "Signal-registration and routing infrastructure for use in multiple contexts";
+    license = licenses.bsd3;
+  };
+
+}