Change in coreboot[master]: soc/intel/alderlake, soc/common: Add method to determine the cpu type

[Sridhar Siricilla (Code Review)]

Attention is currently required from: Tim Wawrzynczak, Arthur Heymans, Patrick Rudolph.
Sridhar Siricilla has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/59360 )

Change subject: soc/intel/alderlake, soc/common: Add method to determine the cpu type
......................................................................

Patch Set 6:

(1 comment)

Patchset:

PS6:
> Hmm, we haven't made it very easy to get data out of MP Init, have we....  […]

We can't avoid the returns/fills an array of core types even we put entire procedure in a single function. The array generation is important to map CPU index to CPU type in the ascending order since OS consumes this information(CPPC3 package) and populate CPU's specific structure in the same order.