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/servers/mesos-dns/default.nix

@@ -0,0 +1,21 @@
+{ buildGoPackage, fetchFromGitHub }:
+
+buildGoPackage rec {
+  pname = "mesos-dns";
+  version = "0.1.2";
+  rev = "v${version}";
+
+  goPackagePath = "github.com/mesosphere/mesos-dns";
+
+  # Avoid including the benchmarking test helper in the output:
+  subPackages = [ "." ];
+
+  src = fetchFromGitHub {
+    inherit rev;
+    owner = "mesosphere";
+    repo = "mesos-dns";
+    sha256 = "0zs6lcgk43j7jp370qnii7n55cd9pa8gl56r8hy4nagfvlvrcm02";
+  };
+
+  goDeps = ./deps.nix;
+}