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/unicodedata2/default.nix

@@ -0,0 +1,22 @@
+{ lib, buildPythonPackage, fetchPypi, pytestCheckHook, isPy27 }:
+
+buildPythonPackage rec {
+  pname = "unicodedata2";
+  version = "14.0.0";
+
+  disabled = isPy27;
+
+  src = fetchPypi {
+    inherit version pname;
+    sha256 = "110nnvh02ssp92xbmswy39aa186jrmb7m41x4220wigl8c0dzxs1";
+  };
+
+  checkInputs = [ pytestCheckHook ];
+
+  meta = with lib; {
+    description = "Backport and updates for the unicodedata module";
+    homepage = "https://github.com/mikekap/unicodedata2";
+    license = licenses.asl20;
+    maintainers = [ maintainers.sternenseemann ];
+  };
+}