mb/google/poppy/variants: Set pch_trip_temp to 75C

Similar to Soraka, this change sets the pch_trip_temp value to
75C. This is important so that PMC can shutdown the thermal sensor
when CPU is in C-state and DTS temp <= pch_trip_temp.

BUG=b:74089135

Change-Id: Ic46fa0681796b821dfb014ab91734c960df7846a
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/24968
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
3 files changed