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/asttokens/default.nix

@@ -0,0 +1,50 @@
+{ lib
+, fetchPypi
+, buildPythonPackage
+, setuptools-scm
+, six
+, astroid
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "asttokens";
+  version = "2.0.5";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-mlTBFPAsepSA1WVQkyVGo/H+cdigLxvHzNDuPuNc9NU=";
+  };
+
+  nativeBuildInputs = [
+    setuptools-scm
+  ];
+
+  propagatedBuildInputs = [
+    six
+  ];
+
+  checkInputs = [
+    astroid
+    pytestCheckHook
+  ];
+
+  disabledTests = [
+    # Test is currently failing on Hydra, works locally
+    "test_slices"
+  ];
+
+  disabledTestPaths = [
+    # incompatible with astroid 2.11.0, pins <= 2.5.3
+    "tests/test_astroid.py"
+  ];
+
+  pythonImportsCheck = [ "asttokens" ];
+
+  meta = with lib; {
+    homepage = "https://github.com/gristlabs/asttokens";
+    description = "Annotate Python AST trees with source text and token information";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ leenaars ];
+  };
+}