Change in coreboot[master]: mb/google/brya/var/gimble: Update thermal table for Gimble

[Sumeet R Pawnikar (Code Review)]

Attention is currently required from: YH Lin, Tim Wawrzynczak, Mark Hsieh, Felix Held, Zhuohao Lee.
Sumeet R Pawnikar has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/59102 )

Change subject: mb/google/brya/var/gimble: Update thermal table for Gimble
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Patch Set 8:

(2 comments)

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

https://review.coreboot.org/c/coreboot/+/59102/comment/c16869f1_2db601d9 
PS8, Line 53: 53
I feel this temperature threshold is very low for sensor_0 which is for DRAM. This might cause early PL1 throttling and impact performance. 
Can you share your side test results over bug with this CL for our reference ?

https://review.coreboot.org/c/coreboot/+/59102/comment/ab058ebe_5f1e71f2 
PS8, Line 75: 0
How does it help on system performance side ? Please, share test results on bug. Thanks.