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/imagecorruptions/default.nix

@@ -0,0 +1,38 @@
+{ buildPythonPackage
+, fetchPypi
+, numpy
+, scikitimage
+, lib
+, opencv3
+}:
+
+buildPythonPackage rec {
+  pname = "imagecorruptions";
+  version = "1.1.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "044e173f24d5934899bdbf3596bfbec917e8083e507eed583ab217abebbe084d";
+  };
+
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "'opencv-python >= 3.4.5'," ""
+  '';
+
+  propagatedBuildInputs = [
+    numpy
+    scikitimage
+    opencv3
+  ];
+
+  doCheck = false;
+  pythonImportsCheck = [ "imagecorruptions" ];
+
+  meta = with lib; {
+    homepage = "https://github.com/bethgelab/imagecorruptions";
+    description = "This package provides a set of image corruptions";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ rakesh4g ];
+  };
+}