Change in coreboot[master]: ec/google: Notify DPTF driver power participant on PD event

[Varshit B Pandya (Code Review)]

Attention is currently required from: Subrata Banik, Tim Wawrzynczak, Rizwan Qureshi, Eric Lai.
Varshit B Pandya has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/62946 )

Change subject: ec/google: Notify DPTF driver power participant on PD event
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Patch Set 5:

(1 comment)

File src/ec/google/chromeec/acpi/ec.asl:

https://review.coreboot.org/c/coreboot/+/62946/comment/9f750435_faafa64b 
PS1, Line 87: 		PWRT, 8,	// Power source and change count
> ACK, will comeback with the patch details for the corresponding change in EC

Here are the EC patches
https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3545778
https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3547317