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/tumpa/default.nix

@@ -0,0 +1,46 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, setuptools
+, pyside2
+, johnnycanencrypt
+, pythonOlder
+, wrapQtAppsHook
+}:
+
+buildPythonPackage rec {
+  pname = "tumpa";
+  version = "0.1.2";
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "kushaldas";
+    repo = "tumpa";
+    rev = "v${version}";
+    sha256 = "17nhdildapgic5l05f3q1wf5jvz3qqdjv543c8gij1x9rdm8hgxi";
+  };
+
+  propagatedBuildInputs = [
+    setuptools
+    johnnycanencrypt
+    pyside2
+  ];
+
+  nativeBuildInputs = [
+    wrapQtAppsHook
+  ];
+
+  dontWrapQtApps = true;
+  preFixup = ''
+    makeWrapperArgs+=("''${qtWrapperArgs[@]}")
+  '';
+
+  doCheck = false;
+
+  meta = with lib; {
+    description = "OpenPGP key creation and smartcard access";
+    homepage = "https://github.com/kushaldas/tumpa";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ _0x4A6F ];
+  };
+}