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/retry/default.nix

@@ -0,0 +1,43 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pbr
+, decorator
+, py
+, mock
+, pytest
+}:
+
+buildPythonPackage rec {
+  pname = "retry";
+  version = "0.9.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "f8bfa8b99b69c4506d6f5bd3b0aabf77f98cdb17f3c9fc3f5ca820033336fba4";
+  };
+
+  nativeBuildInputs = [
+    pbr
+  ];
+
+  propagatedBuildInputs = [
+    decorator
+    py
+  ];
+
+  checkInputs = [
+    mock
+    pytest
+  ];
+
+  checkPhase = ''
+    pytest
+  '';
+
+  meta = with lib; {
+    description = "Easy to use retry decorator";
+    homepage = "https://github.com/invl/retry";
+    license = licenses.asl20;
+  };
+}