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/tools/misc/clex/default.nix

@@ -0,0 +1,29 @@
+{ lib, stdenv, fetchurl, ncurses }:
+
+stdenv.mkDerivation rec {
+  pname = "clex";
+  version = "4.6.patch10";
+
+  src = fetchurl {
+    sha256 = "03niihqk57px7rm2c84qira5jm5vw8lj5s58dximk0w5gsis4fhw";
+    url = "${meta.homepage}/download/${pname}-${version}.tar.gz";
+  };
+
+  buildInputs = [ ncurses ];
+
+  enableParallelBuilding = true;
+
+  meta = with lib; {
+    description = "File manager with full-screen terminal interface";
+    longDescription = ''
+      CLEX (pronounced KLEKS) displays directory contents including the file
+      status details and provides features like command history, filename
+      insertion, or name completion in order to help users to create commands
+      to be executed by the shell. There are no built-in commands, CLEX is an
+      add-on to your favorite shell.
+    '';
+    homepage = "http://www.clex.sk";
+    license = licenses.gpl2Plus;
+    platforms = with platforms; linux ++ darwin;
+  };
+}