jetway/nf81-t56n-lf: Revert change on function prototypes

These function prototypes to remain identical across all
AGESA families.

Change-Id: If2a0a08fa7122e6becded37d032d3c40bde2d149
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5656
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
4 files changed