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/pyenvisalink/default.nix

@@ -0,0 +1,41 @@
+{ lib
+, async-timeout
+, buildPythonPackage
+, colorlog
+, fetchPypi
+, pyserial
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "pyenvisalink";
+  version = "4.4";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-YUYiCid+XAlfytkyz4Td5CG1zBOrsLx4/nuRubRE14w=";
+  };
+
+  propagatedBuildInputs = [
+    async-timeout
+    colorlog
+    pyserial
+  ];
+
+  # Tests require an Envisalink device
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "pyenvisalink"
+  ];
+
+  meta = with lib; {
+    description = "Python interface for Envisalink 2DS/3 Alarm API";
+    homepage = "https://github.com/Cinntax/pyenvisalink";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}