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/ocaml-modules/yaml/yaml-sexp.nix

@@ -0,0 +1,13 @@
+{ lib, fetchurl, buildDunePackage, yaml, dune-configurator, ppx_sexp_conv, sexplib }:
+
+buildDunePackage rec {
+  pname = "yaml-sexp";
+
+  inherit (yaml) version src useDune2;
+
+  propagatedBuildInputs = [ yaml ppx_sexp_conv sexplib ];
+
+  meta = yaml.meta // {
+    description = "ocaml-yaml with sexp support";
+  };
+}