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/jsonpatch/default.nix

@@ -0,0 +1,25 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, jsonpointer
+}:
+
+buildPythonPackage rec {
+  pname = "jsonpatch";
+  version = "1.32";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "b6ddfe6c3db30d81a96aaeceb6baf916094ffa23d7dd5fa2c13e13f8b6e600c2";
+  };
+
+  # test files are missing
+  doCheck = false;
+  propagatedBuildInputs = [ jsonpointer ];
+
+  meta = {
+    description = "Library to apply JSON Patches according to RFC 6902";
+    homepage = "https://github.com/stefankoegl/python-json-patch";
+    license = lib.licenses.bsd2; # "Modified BSD license, says pypi"
+  };
+}