nb/x4x: Fix sticky scratchpad register offset

Change-Id: I9b952e32dc661f5c1fa96b037b415693d8777b04
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/17685
Tested-by: build bot (Jenkins)
Reviewed-by: Damien Zammit <damien@zamaudio.com>
1 file changed