[flashrom] main board in SuperMicro FatTwin

[Tucker]

The main board of in the SuperMicro fatTwin is listed as an X9SCE.  It's
not listed on your Wiki as being known yet.  Attached you'll find the
verbose log from flashrom.
 x9sce https://docs.google.com/file/d/0By--6GXzLOzWZFc4WnF0SW5kNms/edit