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/mock/default.nix

@@ -0,0 +1,42 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, fetchpatch
+, python
+, pythonOlder
+, pytest
+}:
+
+buildPythonPackage rec {
+  pname = "mock";
+  version = "4.0.3";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "7d3fbbde18228f4ff2f1f119a45cdffa458b4c0dee32eb4d2bb2f82554bac7bc";
+  };
+
+  patches = [
+    (fetchpatch {
+      url = "https://github.com/testing-cabal/mock/commit/f3e3d82aab0ede7e25273806dc0505574d85eae2.patch";
+      sha256 = "sha256-wPrv1/WeICZHn31UqFlICFsny2knvn3+Xg8BZoaGbwQ=";
+    })
+  ];
+
+  checkPhase = ''
+    ${python.interpreter} -m unittest discover
+  '';
+
+  checkInputs = [
+    pytest
+  ];
+
+  meta = with lib; {
+    description = "Mock objects for Python";
+    homepage = "https://github.com/testing-cabal/mock";
+    license = licenses.bsd2;
+  };
+}