Change in coreboot[master]: mb/google/brya/var/kano: Update TDP PL1, PL2, and PL4 for U28 SKUs

[EricR Lai (Code Review)]

Attention is currently required from: David Wu, Tim Wawrzynczak, Ren Kuo, Nick Vaccaro.
EricR Lai has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/62466 )

Change subject: mb/google/brya/var/kano: Update TDP PL1, PL2, and PL4 for U28 SKUs
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Patch Set 3:

(1 comment)

File src/mainboard/google/brya/variants/kano/overridetree.cb:

https://review.coreboot.org/c/coreboot/+/62466/comment/efc26990_de329e61 
PS3, Line 66: 	register "power_limits_config[ADL_P_282_482_28W_CORE]" = "{
> This change is only for 28W, we don't need to update power limits for 15W.

I am replied to Tim's comment. Basiclly we don't need the register in device tree, since you already update the table in ramstage.c. You only need to update the DPTF entry which is correct. You can try remove the line since #66 and try :p