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/pep517/default.nix

@@ -0,0 +1,59 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, flit-core
+, tomli
+, pythonOlder
+, importlib-metadata
+, zipp
+, pytestCheckHook
+, setuptools
+, testpath
+, mock
+, pip
+}:
+
+buildPythonPackage rec {
+  pname = "pep517";
+  version = "0.12.0";
+  format = "pyproject";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "931378d93d11b298cf511dd634cf5ea4cb249a28ef84160b3247ee9afb4e8ab0";
+  };
+
+  nativeBuildInputs = [
+    flit-core
+  ];
+
+  propagatedBuildInputs = [
+    tomli
+  ] ++ lib.optionals (pythonOlder "3.8") [
+    importlib-metadata zipp
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+    setuptools
+    testpath
+    mock
+    pip
+  ];
+
+  disabledTests = [
+    "test_setup_py"
+    "test_issue_104"
+  ];
+
+  preCheck = ''
+    rm pytest.ini # wants flake8
+    rm tests/test_meta.py # wants to run pip
+  '';
+
+  meta = {
+    description = "Wrappers to build Python packages using PEP 517 hooks";
+    license = lib.licenses.mit;
+    homepage = "https://github.com/pypa/pep517";
+  };
+}