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/stuntman/default.nix

@@ -0,0 +1,45 @@
+{ stdenv, lib, fetchFromGitHub, openssl, boost }:
+
+stdenv.mkDerivation {
+  pname = "stuntman";
+  version = "1.2.16";
+
+  src = fetchFromGitHub {
+    owner = "jselbie";
+    repo = "stunserver";
+    rev = "cfadf9c3836d5ae63a682913de24ba085df924f3";
+    sha256 = "1gcx4zj44f0viddnn5klkmq0dgd29av5p06iyf9f1va4a3lk0cbg";
+  };
+
+  buildInputs = [
+    boost
+    openssl
+  ];
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/bin
+    mv stunserver $out/bin/
+    mv stunclient $out/bin/
+
+    runHook postInstall
+  '';
+
+  doCheck = true;
+  checkPhase = ''
+    runHook preCheck
+
+    ./stuntestcode
+
+    runHook postCheck
+  '';
+
+  meta = with lib; {
+    description = "STUNTMAN - an open source STUN server and client";
+    homepage = "http://www.stunprotocol.org/";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ mattchrist ];
+    platforms = platforms.unix;
+  };
+}