Solved!
I assume you're referring to this post: Yun & RFID RC522 pin layout [solved] - #5 by lukazcorrea - Arduino Yún - Arduino Forum. It would've been better to have replied in that thread.
Since you've solved it, why don't you tell us how you did it? It will help the next person who comes along with the same problem (someone like you who was looking for the solution the other day when you posted to that other thread.)