mainboard/google/snappy: Update DPTF settings

Update DPTF parameters based on thermal team test result.

1. Update TSR2 trigger points.
   TSR2 passive point: 70, critical point: 90

2. Set PL2 Max to 15W.

BUG=chrome-os-partner:61383
BRANCH=reef
TEST=build, boot on snappy, and verified by thermal team

Change-Id: I8d01d6c1d7eabd359ceb131f3cd10965d4ac2c42
Signed-off-by: Wisley Chen <wisley.chen@quantatw.com>
Reviewed-on: https://review.coreboot.org/18318
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
1 file changed