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/tools/networking/http2tcp/default.nix

@@ -0,0 +1,47 @@
+{ lib
+, python3
+, stdenv
+, fetchurl
+}:
+
+stdenv.mkDerivation rec {
+  pname = "http2tcp";
+  version = "0.5";
+
+  src = fetchurl {
+    url = "https://www.linta.de/~aehlig/http2tcp/${pname}-${version}.tar.gz";
+    sha256 = "34fb83c091689dee398ca80db76487e0c39abb17cef390d845ffd888009a5caa";
+  };
+
+  buildInputs = [
+    (python3.withPackages (ps: [
+      ps.wsgitools
+    ]))
+  ];
+
+  dontBuild = true;
+
+  installPhase = ''
+    mkdir -p $out/{bin,share/${pname}}
+    cp http2tcp* $out/bin
+    cp Protocol $out/share/${pname}/
+  '';
+
+  meta = with lib; {
+    maintainers = with maintainers; [ clkamp ];
+    description = "A tool for tunneling TCP connections via HTTP GET requests";
+    longDescription = ''
+      The http2tcp tools allow to tunnel tcp connections (presumably
+      ssh) via syntactically correct http requests. It is designed to
+      work in the presence of so-called "transparent"
+      store-and-forward proxies disallowing POST requests.
+
+      It also turned out to be useful to stabilise connections where
+      the client's internet connection is unreliable (frequent long
+      network outages, rapidly changing IP address, etc).
+    '';
+    homepage = "https://www.linta.de/~aehlig/http2tcp/";
+    license = licenses.bsd3;
+    platforms = platforms.all;
+  };
+}