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/pytest-datadir/default.nix

@@ -0,0 +1,32 @@
+{ lib, buildPythonPackage, fetchFromGitHub
+, setuptools-scm, pytest
+}:
+
+buildPythonPackage rec {
+  pname = "pytest-datadir";
+  version = "1.3.1";
+  format = "pyproject";
+
+  src = fetchFromGitHub {
+    owner = "gabrielcnr";
+    repo = pname;
+    rev = version;
+    sha256 = "0kwgp6sqnqnmww5r0dkmyfpi0lmw0iwxz3fnwn2fs8w6bvixzznf";
+  };
+
+  nativeBuildInputs = [ setuptools-scm ];
+
+  preBuild = ''
+    export SETUPTOOLS_SCM_PRETEND_VERSION="${version}"
+  '';
+
+  checkInputs = [ pytest ];
+  checkPhase = "pytest";
+
+  meta = with lib; {
+    homepage = "https://github.com/gabrielcnr/pytest-datadir";
+    description = "pytest plugin for manipulating test data directories and files";
+    license = licenses.mit;
+    maintainers = with maintainers; [ kira-bruneau ];
+  };
+}