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/extras/default.nix

@@ -0,0 +1,23 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "extras";
+  version = "1.0.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "132e36de10b9c91d5d4cc620160a476e0468a88f16c9431817a6729611a81b4e";
+  };
+
+  # error: invalid command 'test'
+  doCheck = false;
+
+  meta = {
+    description = "Useful extra bits for Python - things that should be in the standard library";
+    homepage = "https://github.com/testing-cabal/extras";
+    license = lib.licenses.mit;
+  };
+}