That's impossible, unless you somehow rig the auto-feeder with dry ice (which you would have to replenish), or modify an existing freezer, or something along those lines.
The purpose of an automatic feeder is that it will sit there with food in it all the time, and it will dose out the food at specific time intervals. If you tried to do that with frozen food, the food would defrost while it sat in the feeder, and then it would begin to rot.