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/development/libraries/retro-gtk/gio-unix.patch

@@ -0,0 +1,11 @@
+--- a/retro-gtk/meson.build 2021-03-21 20:25:51.000000000 +0100
++++ b/retro-gtk/meson.build 2021-05-23 17:36:46.793693816 +0200
+@@ -103,6 +103,7 @@
+ retro_gtk_deps = [
+   epoxy,
+   gio,
++  gio_unix,
+   glib,
+   gmodule,
+   gobject,
+