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/carton/lwt.nix

@@ -0,0 +1,46 @@
+{ buildDunePackage, carton
+, lwt, decompress, optint, bigstringaf
+, alcotest, alcotest-lwt, cstruct, fmt, logs
+, mirage-flow, result, rresult, bigarray-compat
+, ke, base64, bos, checkseum, digestif, fpath, mmap
+, stdlib-shims
+, git-binary # pkgs.git
+}:
+
+buildDunePackage {
+  pname = "carton-lwt";
+
+  inherit (carton) version src useDune2 postPatch;
+
+  propagatedBuildInputs = [
+    carton
+    lwt
+    decompress
+    optint
+    bigstringaf
+  ];
+
+  doCheck = true;
+  checkInputs = [
+    git-binary
+    alcotest
+    alcotest-lwt
+    cstruct
+    fmt
+    logs
+    mirage-flow
+    result
+    rresult
+    bigarray-compat
+    ke
+    base64
+    bos
+    checkseum
+    digestif
+    fpath
+    mmap
+    stdlib-shims
+  ];
+
+  inherit (carton) meta;
+}