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/python2-modules/s3transfer/default.nix

@@ -0,0 +1,52 @@
+{ lib
+, fetchPypi
+, pythonOlder
+, buildPythonPackage
+, docutils
+, mock
+, nose
+, coverage
+, wheel
+, unittest2
+, botocore
+, futures ? null
+}:
+
+buildPythonPackage rec {
+  pname = "s3transfer";
+  version = "0.4.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-ywIvSxZVHt67sxo3fT8JYA262nNj2MXbeXbn9Hcy4bI=";
+  };
+
+  propagatedBuildInputs =
+    [
+      botocore
+    ] ++ lib.optional (pythonOlder "3") futures;
+
+  buildInputs = [
+    docutils
+    mock
+    nose
+    coverage
+    wheel
+    unittest2
+  ];
+
+  checkPhase = ''
+    pushd s3transfer/tests
+    nosetests -v unit/ functional/
+    popd
+  '';
+
+  # version on pypi has no tests/ dir
+  doCheck = false;
+
+  meta = with lib; {
+    homepage = "https://github.com/boto/s3transfer";
+    license = licenses.asl20;
+    description = "A library for managing Amazon S3 transfers";
+  };
+}