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/elmax/default.nix

@@ -0,0 +1,47 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, httpx
+, poetry-core
+, pythonOlder
+, pytest-asyncio
+, pytest-httpx
+, pytestCheckHook
+, yarl
+}:
+
+buildPythonPackage rec {
+  pname = "elmax";
+  version = "0.1.5";
+  format = "pyproject";
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "home-assistant-ecosystem";
+    repo = "python-elmax";
+    rev = version;
+    sha256 = "sha256-EcYEpYv+EwwEfW8Sy7aQjFAPpmsA6qVbmlwrPdxdnEw=";
+  };
+
+  nativeBuildInputs = [ poetry-core ];
+
+  propagatedBuildInputs = [
+    httpx
+    yarl
+  ];
+
+  checkInputs = [
+    pytest-asyncio
+    pytest-httpx
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [ "elmax" ];
+
+  meta = with lib; {
+    description = "Python API client for the Elmax Cloud services";
+    homepage = "https://github.com/home-assistant-ecosystem/python-elmax";
+    license = with licenses; [ asl20 ];
+    maintainers = with maintainers; [ fab ];
+  };
+}