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/audio/faust/faust2firefox.nix

@@ -0,0 +1,14 @@
+{ faust
+, xdg-utils
+}:
+
+# This just runs faust2svg, then attempts to open a browser using
+# 'xdg-open'.
+
+faust.wrap {
+
+  baseName = "faust2firefox";
+
+  runtimeInputs = [ xdg-utils ];
+
+}