Change in coreboot[master]: soc/intel/../thermal: Fix return type of `pch_get_ltt_value()`

[Subrata Banik (Code Review)]

Attention is currently required from:  Felix Singer, Maulik V Vaghela, Tim Wawrzynczak, Angel Pons, Patrick Rudolph, EricR Lai.
Subrata Banik has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/59311 )

Change subject: soc/intel/../thermal: Fix return type of `pch_get_ltt_value()`
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Patch Set 1:

(3 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/59311/comment/da500cc7_5638273a 
PS1, Line 7: Modified `pch_get_ltt_value()` return type
> How about this: […]

I was more worried about no crossing >72 😊
Thanks for your suggestion

https://review.coreboot.org/c/coreboot/+/59311/comment/389fd7bb_c9eac54d 
PS1, Line 9: This patch modifies the pch_get_ltt_value() function return type from
           : uint16_t to uint32_t.
> Please explain why. That bug number below isn't very helpful for outstanding people.

Sure, my bad.

Patchset:

PS1:
> Just curious, why need change to int32? PCH register enlarge to DWORD?

Yes Eric, its due to https://review.coreboot.org/c/coreboot/+/59209/8/src/soc/intel/common/block/... where we have to program T2L, T1L and T0L level instead of only 1 threshold level.