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/wbox/default.nix

@@ -0,0 +1,22 @@
+{ lib, stdenv, fetchurl }:
+
+stdenv.mkDerivation rec {
+  pname = "wbox";
+  version = "5";
+
+  installPhase = ''
+    install -vD wbox "$out/bin/wbox"
+  '';
+
+  src = fetchurl {
+    url = "http://www.hping.org/wbox/${pname}-${version}.tar.gz";
+    sha256 = "06daxwbysppvbh1mwprw8fgsp6mbd3kqj7a978w7ivn8hdgdi28m";
+  };
+
+  meta = {
+    description = "A simple HTTP benchmarking tool";
+    homepage = "http://www.hping.org/wbox/";
+    license = lib.licenses.bsd3;
+    platforms = lib.platforms.unix;
+  };
+}