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/pyxiaomigateway/default.nix

@@ -0,0 +1,30 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, cryptography
+}:
+
+buildPythonPackage rec {
+  pname = "pyxiaomigateway";
+  version = "0.13.4";
+
+  src = fetchFromGitHub {
+    owner = "Danielhiversen";
+    repo = "PyXiaomiGateway";
+    rev = version;
+    sha256 = "1xg89sdds04wgil88ihs84cjr3df6lajjbkyb1aymj638ibdyqns";
+  };
+
+  propagatedBuildInputs = [ cryptography ];
+
+  # Tests are not mocking the gateway completely
+  doCheck = false;
+  pythonImportsCheck = [ "xiaomi_gateway" ];
+
+  meta = with lib; {
+    description = "Python library to communicate with the Xiaomi Gateway";
+    homepage = "https://github.com/Danielhiversen/PyXiaomiGateway/";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}