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/pysigma/default.nix

@@ -0,0 +1,49 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, fetchpatch
+, poetry-core
+, pyparsing
+, pytestCheckHook
+, pythonOlder
+, pyyaml
+}:
+
+buildPythonPackage rec {
+  pname = "pysigma";
+  version = "0.6.2";
+  format = "pyproject";
+
+  disabled = pythonOlder "3.8";
+
+  src = fetchFromGitHub {
+    owner = "SigmaHQ";
+    repo = "pySigma";
+    rev = "v${version}";
+    hash = "sha256-/SZe4pzlhlkzW84WOjPOibfdznf5uLHL5RsNnT/EL9M=";
+  };
+
+  nativeBuildInputs = [
+    poetry-core
+  ];
+
+  propagatedBuildInputs = [
+    pyparsing
+    pyyaml
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [
+    "sigma"
+  ];
+
+  meta = with lib; {
+    description = "Library to parse and convert Sigma rules into queries";
+    homepage = "https://github.com/SigmaHQ/pySigma";
+    license = with licenses; [ lgpl21Only ];
+    maintainers = with maintainers; [ fab ];
+  };
+}