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/patiencediff/default.nix

@@ -0,0 +1,18 @@
+{ lib, buildPythonPackage, fetchPypi }:
+
+buildPythonPackage rec {
+  pname = "patiencediff";
+  version = "0.2.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "456d9fc47fe43f9aea863059ea2c6df5b997285590e4b7f9ee8fbb6c3419b5a7";
+  };
+
+  meta = with lib; {
+    description = "C implementation of patiencediff algorithm for Python";
+    homepage = "https://github.com/breezy-team/patiencediff";
+    license = licenses.gpl2Plus;
+    maintainers = [ maintainers.wildsebastian ];
+  };
+}