Staging: samsung-laptop: fix header address for N128

When doing the conversion to the "support more than one model" the
header address of the N128 was incorrectly copied.

This fixes the driver to work properly now on this laptop model.

Cc: Ingmar Steen <iksteen@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>