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/bellows/default.nix

@@ -0,0 +1,59 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, click
+, click-log
+, dataclasses
+, pure-pcapy3
+, pyserial-asyncio
+, voluptuous
+, zigpy
+, asynctest
+, pythonOlder
+, pytestCheckHook
+, pytest-asyncio
+, pytest-timeout
+}:
+
+buildPythonPackage rec {
+  pname = "bellows";
+  version = "0.30.0";
+  format = "setuptools";
+
+  src = fetchFromGitHub {
+    owner = "zigpy";
+    repo = "bellows";
+    rev = "refs/tags/${version}";
+    sha256 = "sha256-epsE/VKK6LwMVbkx5PWgAxZ62PO4udCFr3jYi0MrUpI=";
+  };
+
+  propagatedBuildInputs = [
+    click
+    click-log
+    pure-pcapy3
+    pyserial-asyncio
+    voluptuous
+    zigpy
+  ] ++ lib.optionals (pythonOlder "3.7") [
+    dataclasses
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+    pytest-asyncio
+    pytest-timeout
+  ]  ++ lib.optionals (pythonOlder "3.8") [
+    asynctest
+  ];
+
+  pythonImportsCheck = [
+    "bellows"
+  ];
+
+  meta = with lib; {
+    description = "Python module to implement EZSP for EmberZNet devices";
+    homepage = "https://github.com/zigpy/bellows";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ etu mvnetbiz ];
+  };
+}