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/graphics/image_optim/default.nix

@@ -0,0 +1,54 @@
+{ lib, bundlerApp, bundlerUpdateScript, makeWrapper,
+  withPngcrush ? true,       pngcrush,
+  withPngout ? true,         pngout,
+  withAdvpng ? true,         advancecomp,
+  withOptipng ? true,        optipng,
+  withPngquant ? true,       pngquant,
+  withJhead ? true,          jhead,
+  withJpegoptim ? true,      jpegoptim,
+  withJpegrecompress ? true, jpeg-archive,
+  withJpegtran ? true,       libjpeg,
+  withGifsicle ? true,       gifsicle,
+  withSvgo ? true,           svgo
+}:
+
+with lib;
+
+let
+  optionalDepsPath = []
+    ++ optional withPngcrush pngcrush
+    ++ optional withPngout pngout
+    ++ optional withAdvpng advancecomp
+    ++ optional withOptipng optipng
+    ++ optional withPngquant pngquant
+    ++ optional withJhead jhead
+    ++ optional withJpegoptim jpegoptim
+    ++ optional withJpegrecompress jpeg-archive
+    ++ optional withJpegtran libjpeg
+    ++ optional withGifsicle gifsicle
+    ++ optional withSvgo svgo;
+in
+
+bundlerApp {
+  pname = "image_optim";
+  gemdir = ./.;
+
+  exes = [ "image_optim" ];
+
+  buildInputs = [ makeWrapper ];
+
+  postBuild = ''
+    wrapProgram $out/bin/image_optim \
+      --prefix PATH : ${lib.escapeShellArg (makeBinPath optionalDepsPath)}
+  '';
+
+  passthru.updateScript = bundlerUpdateScript "image_optim";
+
+  meta = with lib; {
+    description = "Command line tool and ruby interface to optimize (lossless compress, optionally lossy) jpeg, png, gif and svg images using external utilities (advpng, gifsicle, jhead, jpeg-recompress, jpegoptim, jpegrescan, jpegtran, optipng, pngcrush, pngout, pngquant, svgo)";
+    homepage    = "https://github.com/toy/image_optim";
+    license     = licenses.mit;
+    maintainers = with maintainers; [ srghma nicknovitski ];
+    platforms   = platforms.all;
+  };
+}