Change in coreboot[master]: soc/intel/common/{sa, adl}: Add `finalize` operation for systemagent

[Angel Pons (Code Review)]

Attention is currently required from: Subrata Banik, Tim Wawrzynczak, Nick Vaccaro, Arthur Heymans, Eric Lai.
Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63518 )

Change subject: soc/intel/common/{sa, adl}: Add `finalize` operation for systemagent
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Patch Set 2:

(1 comment)

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

https://review.coreboot.org/c/coreboot/+/63518/comment/db328109_9724f7fd 
PS2, Line 349: if (!notify_data[i].skip)
             : 			notify_data[i].notify_func();
> > I suspect compilers are not good at optimizing this out, e.g. […]

I think this pattern comes from the FSP notify driver, where I suggested expanding an existing structure. This isn't needed here, though.