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/development/tools/dep2nix/default.nix

@@ -0,0 +1,34 @@
+{ lib, fetchFromGitHub, buildGoPackage
+, makeWrapper, nix-prefetch-scripts }:
+
+buildGoPackage rec {
+  pname = "dep2nix";
+  version = "unstable-2019-04-02";
+
+  goPackagePath = "github.com/nixcloud/dep2nix";
+
+  src = fetchFromGitHub {
+    owner = "nixcloud";
+    repo = pname;
+    rev = "830684f920333b8ff0946d6b807e8be642eec3ef";
+    sha256 = "17sjxhzhmz4893x3x054anp4xvqd1px15nv3fj2m7i6r0vbgpm0j";
+  };
+
+  nativeBuildInputs = [
+    makeWrapper
+  ];
+
+  postFixup = ''
+    wrapProgram $out/bin/dep2nix \
+      --prefix PATH : ${nix-prefetch-scripts}/bin
+  '';
+
+  goDeps = ./deps.nix;
+
+  meta = with lib; {
+    description = "Convert `Gopkg.lock` files from golang dep into `deps.nix`";
+    license = licenses.bsd3;
+    homepage = "https://github.com/nixcloud/dep2nix";
+    maintainers = [ maintainers.mic92 ];
+  };
+}