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/psygnal/default.nix

@@ -0,0 +1,35 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, wheel
+, setuptools
+, setuptools-scm
+, pytestCheckHook
+, pytest-mypy-plugins
+, pytest-cov
+, pytest
+, mypy
+, typing-extensions
+}: buildPythonPackage rec
+{
+  pname = "psygnal";
+  version = "0.3.3";
+  src = fetchFromGitHub {
+    owner = "tlambert03";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-BQmcA1gD2i4sxROH+a7gStcNK1mXYVerIZ2y6gn8vI8=";
+  };
+  buildInputs = [ setuptools-scm ];
+  propagatedBuildInputs = [ typing-extensions ];
+  checkInputs = [ pytestCheckHook pytest-cov pytest-mypy-plugins ];
+  doCheck = false;  # mypy checks are failing
+  SETUPTOOLS_SCM_PRETEND_VERSION = version;
+
+  meta = with lib; {
+    description = "Pure python implementation of Qt Signals";
+    homepage = "https://github.com/tlambert03/psygnal";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ SomeoneSerge ];
+  };
+}