Hi,
wpa2 is 802.11i but not 802.1x I'd say. So not quite sure what you really are looking for.
In general I tend to use connman as described on IoT - Connecting Intel(R) Edison to an IEEE 802.1x Enterprise Hotspot via connman | Intel® Developer Zone (the blog is on Edison - but did likewise with Galileo on the Intel(R) IoT developer kit SD card eglibc/uclibc image)