BOARD_NORMAL is completely unused and BOARD_NCR53C400 is used only by
g_NCR5380 internally. Remove the unused definitions.
Signed-off-by: NFinn Thain <fthain@telegraphics.com.au>
Acked-by: NSam Creasey <sammy@sammy.net>
Signed-off-by: NChristoph Hellwig <hch@lst.de>