superio/winbond/w83627thg: Depreciate romstage component

Depreciate the model specific early_serial.c romstage component for this
Super I/O in favor of the recent generic winbond romstage framework.

Change-Id: I22775dc9b6341c8994d21591b7176abe4dd99911
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5724
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
3 files changed