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/applications/networking/cluster/fn-cli/default.nix

@@ -0,0 +1,36 @@
+{ lib, buildGoModule, fetchFromGitHub, docker }:
+
+buildGoModule rec {
+  pname = "fn";
+  version = "0.6.17";
+
+  src = fetchFromGitHub {
+    owner = "fnproject";
+    repo = "cli";
+    rev = version;
+    sha256 = "sha256-u/YISLlZFYlAUejSlaH7POA2WwKURPN8phFU86/caXU=";
+  };
+
+  vendorSha256 = null;
+
+  subPackages = ["."];
+
+  buildInputs = [
+    docker
+  ];
+
+  preBuild = ''
+    export HOME=$TMPDIR
+  '';
+
+  postInstall = ''
+    mv $out/bin/cli $out/bin/fn
+  '';
+
+  meta = with lib; {
+    description = "Command-line tool for the fn project";
+    homepage = "https://fnproject.io";
+    license = licenses.asl20;
+    maintainers = [ maintainers.c4605 ];
+  };
+}