[M] Change in coreboot[master]: soc/intel/cmn/tom: Early caching of TOM region

[Paul Menzel (Code Review)]

Attention is currently required from: Tarun Tuli, Jamie Ryu, Subrata Banik, Kapil Porwal.

Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/73272 )

Change subject: soc/intel/cmn/tom: Early caching of TOM region
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Patch Set 1:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/73272/comment/b6a0ccef_f5c011a8 
PS1, Line 7: soc/intel/cmn/tom: Early caching of TOM region
Please make it a statement: Cache TOM region early

https://review.coreboot.org/c/coreboot/+/73272/comment/ecc4eb08_c7e4df10 
PS1, Line 12: 
Why is determining TOM take 50 ms? Please elaborate in the commit message.