Drop SuperIO nuvoton/nct6779d

All boards using this SuperIO have been removed from the tree already.

Change-Id: I57eacf2a88077d0d0bffdcf44b3c2ecbd301e625
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/12242
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
5 files changed