nb/sandybridge: Add a kconfig option to ignore XMP max DIMMs

XMP profiles can have a restriction on max supported DIMMs per channel,
but many configurations work with more DIMMs.

This is relevant on mainboards with 2 DIMM slots per channel (usually 4
in total). Populating both slots with DIMMs that support XMP profiles only
with 1 DIMM per channel turns off said XMP profiles.

TEST=On a system with two DIMM slots per channel populate both slots on
one channel and ensure that DIMMs run with XMP profiles enabled.

Change-Id: I1f22d981afcef0ee73785823b0a943cf3d3564e3
Signed-off-by: Vagiz Trakhanov <rakkin@autistici.org>
Reviewed-on: https://review.coreboot.org/21841
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

0 files changed, 0 insertions, 0 deletions