smsc/lpc47n227: Make early_serial usable

This is the smallest possible change to make early_serial.c
compile when included from romstage.c.

early_serial could be reworked to be built as separate unit
(romstage-y), but that should be done for all SuperIOs,
not some individual outlier.

Change-Id: I90ee66b43c9677b86b1b5d6fcc8febfbe58d80dd
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/1686
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

0 files changed, 0 insertions, 0 deletions