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/git/cohttp.nix

@@ -0,0 +1,19 @@
+{ buildDunePackage, git
+, cohttp, cohttp-lwt, fmt, lwt, result, rresult, uri
+, alcotest, alcotest-lwt, bigstringaf, cstruct, logs
+, mirage-flow, ke
+}:
+
+buildDunePackage rec {
+  pname = "git-cohttp";
+
+  inherit (git) version minimumOCamlVersion src useDune2;
+
+  propagatedBuildInputs = [
+    git cohttp cohttp-lwt fmt lwt result rresult uri
+  ];
+
+  meta = git.meta // {
+    description = "A package to use HTTP-based ocaml-git with Unix backend";
+  };
+}