Hi SpiderKenny,
The LINUX IMAGE FOR SD for Intel Galileo includes the drivers for Intel® Centrino® N-135 and Intel® Centrino® Advance-N 6205. I would recommend N-135 since it was validated with Galileo as AlexT mentioned. Sergey’s blog also covers how to install the driver for a Intel® Centrino® Advanced-N 6235. Here is the link: http://www.malinov.com/Home/sergey-s-blog/intelgalileo-addingwifi
Regards,
Intel_Jesus