nb/intel/x4x: Fix unpopulated value

Previously, 0x0 was the value being used for an unpopulated dimm
on spd[62], however some DDR2 dimms have 0x0 as a valid value.
Now use 0xff which is an unused value even on DDR2/DDR3.

Change-Id: I55a91a6c3fe3733a7bb2abc45ca352c955c07c99
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Reviewed-on: https://review.coreboot.org/15058
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>

0 files changed, 0 insertions, 0 deletions