[L] Change in coreboot[master]: soc/intel/common: provide a list of D-states to enter LPM

[Kapil Porwal (Code Review)]

Attention is currently required from: Tarun Tuli, Eran Mitrani.

Kapil Porwal has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/70166 )

Change subject: soc/intel/common: provide a list of D-states to enter LPM
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Patch Set 3:

(5 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/70166/comment/a1df7c9d_c1e9cf54 
PS3, Line 7: soc/intel/common
and alderlake

Patchset:

PS3: 
Thanks for moving it to common code.

File src/soc/intel/alderlake/acpi.c:

https://review.coreboot.org/c/coreboot/+/70166/comment/c0e604a1_1801f7ab 
PS3, Line 233: void soc_lpi_get_constraints(void *unused)
             : {
             : 	acpi_generate_lpi_constraint_table();
             : }
Can't we remove this method itself?

File src/soc/intel/common/block/acpi/acpi.c:

https://review.coreboot.org/c/coreboot/+/70166/comment/3b6fe2b0_7e5b99b1 
PS3, Line 443: 	return NULL;
set size to 0 as we are returning NULL.

https://review.coreboot.org/c/coreboot/+/70166/comment/27d4cf02_a6556caa 
PS3, Line 486: 
Need to handle a case when `num_entries` is 0 here.