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/cayley/default.nix

@@ -0,0 +1,29 @@
+{ lib, buildGoPackage, fetchFromGitHub }:
+
+buildGoPackage rec {
+  pname = "cayley";
+  version = "0.7.5";
+
+  goPackagePath = "github.com/cayleygraph/cayley";
+
+  src = fetchFromGitHub {
+    owner = "cayleygraph";
+    repo = "cayley";
+    rev = "v${version}";
+    sha256 = "1zfxa9z6spi6xw028mvbc7c3g517gn82g77ywr6picl47fr2blnd";
+  };
+
+  goDeps = ./deps.nix;
+
+  ldflags = [
+    "-X=main.Version=${version}"
+  ];
+
+  meta = {
+    homepage = "https://github.com/cayleygraph/cayley";
+    description = "A graph database inspired by Freebase and Knowledge Graph";
+    maintainers = with lib.maintainers; [ sigma ];
+    license = lib.licenses.asl20;
+    platforms = lib.platforms.unix;
+  };
+}