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/md2gemini/default.nix

@@ -0,0 +1,23 @@
+{ lib, buildPythonPackage, fetchPypi, mistune_2_0, cjkwrap, wcwidth
+, pytestCheckHook }:
+
+buildPythonPackage rec {
+  pname = "md2gemini";
+  version = "1.9.0";
+
+  propagatedBuildInputs = [ mistune_2_0 cjkwrap wcwidth ];
+  checkInputs = [ pytestCheckHook ];
+  pythonImportsCheck = [ "md2gemini" ];
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-d1zuK+NqoPS36ihh8qx9gOET94tApY+SGStsc/bITnU=";
+  };
+
+  meta = with lib; {
+    description = "Markdown to Gemini text format conversion library";
+    homepage = "https://github.com/makeworld-the-better-one/md2gemini";
+    license = licenses.lgpl3Plus;
+    maintainers = [ maintainers.kaction ];
+  };
+}