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/bagit/default.nix

@@ -0,0 +1,38 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, gettext
+, mock
+, pytestCheckHook
+, setuptools-scm
+}:
+
+buildPythonPackage rec {
+  pname = "bagit";
+  version = "1.8.1";
+
+  src = fetchFromGitHub {
+    owner = "LibraryOfCongress";
+    repo = "bagit-python";
+    rev = "v${version}";
+    hash = "sha256-t01P7MPWgOrktuW2zF0TIzt6u/jkLmrpD2OnqawhJaI=";
+  };
+
+  nativeBuildInputs = [ gettext setuptools-scm ];
+
+  SETUPTOOLS_SCM_PRETEND_VERSION = version;
+
+  checkInputs = [
+    mock
+    pytestCheckHook
+  ];
+  pytestFlagsArray = [ "test.py" ];
+  pythonImportsCheck = [ "bagit" ];
+
+  meta = with lib; {
+    description = "Python library and command line utility for working with BagIt style packages";
+    homepage = "https://libraryofcongress.github.io/bagit-python/";
+    license = with licenses; [ publicDomain ];
+    maintainers = with maintainers; [ veprbl ];
+  };
+}