[M] Change in coreboot[main]: soc/intel/common/systemagent: Improve systemagent

[Shuo Liu (Code Review)]

Attention is currently required from: Felix Singer, Jérémy Compostella, [e-mail].

Shuo Liu has posted comments on this change by [e-mail]. ( https://review.coreboot.org/c/coreboot/+/83318?usp=email )

Change subject: soc/intel/common/systemagent: Improve systemagent
......................................................................

Patch Set 10:

(2 comments)

File src/soc/intel/common/block/systemagent/systemagent_def.h:

https://review.coreboot.org/c/coreboot/+/83318/comment/44198072_c9024434?usp... :
PS3, Line 73:  *   IS_LIMIT = If registers/offset indicates address limit or address limit plus 1.
> Rename is_limit to fix_up_limit?

fixup_limit

File src/soc/intel/common/block/systemagent/systemagent_early.c:

https://review.coreboot.org/c/coreboot/+/83318/comment/9e3bd43e_263e876f?usp... :
PS10, Line 138: 		return ALIGN_DOWN(tolud, CONFIG_TOLUD_ALIGNMENT);
if (CONFIG(SA_MEMMAP_FIXUP_LIMIT))
  // to load and fixup the value
otherwise
  // normal routine

P.S. a common routine to fixup limit could be made to used commonly between sa codes and early as codes.