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/cppy/default.nix

@@ -0,0 +1,32 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pythonOlder
+, pytestCheckHook
+, setuptools-scm
+}:
+
+buildPythonPackage rec {
+  pname = "cppy";
+  version = "1.2.1";
+  disabled = pythonOlder "3.7";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-g7Q78XsQhawVxd69tCFU8Ti5KCNLIURzWJgfadDW/hs=";
+  };
+
+  nativeBuildInputs = [
+    setuptools-scm
+  ];
+
+  checkInputs = [ pytestCheckHook ];
+
+  pythonImportsCheck = [ "cppy" ];
+
+  meta = {
+    description = "C++ headers for C extension development";
+    homepage = "https://github.com/nucleic/cppy";
+    license = lib.licenses.bsd3;
+  };
+}