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/paf/default.nix

@@ -0,0 +1,70 @@
+{ buildDunePackage
+, lib
+, fetchurl
+, fetchpatch
+, mirage-stack
+, mirage-time
+, h2
+, tls-mirage
+, mimic
+, ke
+, bigstringaf
+, faraday
+, tls
+, lwt
+, logs
+, fmt
+, mirage-crypto-rng
+, tcpip
+, mirage-time-unix
+, ptime
+, uri
+, alcotest-lwt
+, cstruct
+}:
+
+buildDunePackage rec {
+  pname = "paf";
+  version = "0.0.8";
+
+  src = fetchurl {
+    url = "https://github.com/dinosaure/paf-le-chien/releases/download/${version}/paf-${version}.tbz";
+    sha256 = "CyIIV11G7oUPPHuhov52LP4Ih4pY6bcUApD23/9q39k=";
+  };
+
+  useDune2 = true;
+  minimumOCamlVersion = "4.08";
+
+  propagatedBuildInputs = [
+    mirage-stack
+    mirage-time
+    h2
+    tls-mirage
+    mimic
+    ke
+    bigstringaf
+    faraday
+    tls
+    cstruct
+    tcpip
+  ];
+
+  doCheck = false;
+  checkInputs = [
+    lwt
+    logs
+    fmt
+    mirage-crypto-rng
+    mirage-time-unix
+    ptime
+    uri
+    alcotest-lwt
+  ];
+
+  meta = {
+    description = "HTTP/AF and MirageOS";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.sternenseemann ];
+    homepage = "https://github.com/dinosaure/paf-le-chien";
+  };
+}