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/ngadmin/default.nix

@@ -0,0 +1,33 @@
+{ stdenv, lib, fetchFromGitHub, autoreconfHook, readline
+, withReadline ? true
+, enableEmu ? true
+, enableSpy ? true
+}:
+
+stdenv.mkDerivation {
+  pname = "ngadmin";
+  version = "unstable-2020-10-05";
+
+  src = fetchFromGitHub {
+    owner = "Alkorin";
+    repo = "ngadmin";
+    rev = "5bf8650ce6d465b8cb1e570548819f0cefe9a87d";
+    sha256 = "15vixhwqcpbjdxlaznans9w63kwl29mdkds6spvbv2i7l33qnhq4";
+  };
+
+  nativeBuildInputs =
+    [ autoreconfHook ]
+    ++ lib.optional withReadline readline;
+  enableParallelBuilding = true;
+  configureFlags = with lib;
+    optional (!withReadline) "--without-readline"
+    ++ optional enableEmu "--enable-emu"
+    ++ optional enableSpy "--enable-spy";
+
+  meta = with lib; {
+    description = "Netgear switch (NSDP) administration tool";
+    homepage = "https://www.netgeek.ovh/wiki/projets:ngadmin";
+    license = licenses.gpl2Only;
+    maintainers = [ maintainers.astro ];
+  };
+}