ARM: 5944/1: scsi: fix timer setup in fas216.c

mod_timer() takes an absolute time and not a delay as its argument.

Cc: <stable@kernel.org>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>