New motherboard for supported HW list

[Jeff O'Neil]

Reporting a successful bios flash for motherboard GIGABYTE GA-X79-UD3

Flashrom reports as multiple different chips, visual inspection shows mine
to be "MX25L6406E"

All went smooth, excellent work guys! Much respect!

Put outputs into pastebin so I don't have too much clutter.

Outputs:

flashrom -p internal -V
http://pastebin.com/csEisq2j

lspci *-nnvvxxx*
http://pastebin.com/HXuKAw6t

superiotool -deV
http://pastebin.com/M0rUrhXZ