[S] Change in coreboot[master]: soc/intel/xeon_sp/cpx: Allow creating meminfo for empty DIMM slots

[Angel Pons (Code Review)]

Attention is currently required from: Anjaneya "Reddy" Chagam, Jonathan Zhang, Johnny Lin, Christian Walter, Arthur Heymans, Tim Chu.

Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/64036 )

Change subject: soc/intel/xeon_sp/cpx: Allow creating meminfo for empty DIMM slots
......................................................................

Patch Set 4:

(1 comment)

File src/soc/intel/xeon_sp/cpx/romstage.c:

https://review.coreboot.org/c/coreboot/+/64036/comment/d027644c_6a647f90 
PS1, Line 153: DIMMs
> Yes I think printing both would be better.

Done