soc/intel/skylake: Make use of common thermal code for SKL

This patch ensures skylake soc is using common thermal code
from intel common block.

TEST=Build and boot soraka

Change-Id: I0812daa3536051918ccac973fde8d7f4f949609d
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34648
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Aamir Bohra <aamir.bohra@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/poppy/variants/soraka/devicetree.cb b/src/mainboard/google/poppy/variants/soraka/devicetree.cb
index 872e2e5..4711b1f 100644
--- a/src/mainboard/google/poppy/variants/soraka/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/soraka/devicetree.cb
@@ -179,6 +179,7 @@
 	#| I2C2              | Camera                    |
 	#| I2C4              | Camera                    |
 	#| I2C5              | Audio                     |
+	#| pch_thermal_trip  | PCH Trip Temperature      |
 	#+-------------------+---------------------------+
 	register "common_soc_config" = "{
 		.chipset_lockdown = CHIPSET_LOCKDOWN_COREBOOT,
@@ -228,6 +229,7 @@
 				.sda_hold = 36,
 			},
 		},
+		.pch_thermal_trip = 75,
 	}"
 
 	# Touchscreen
@@ -271,9 +273,6 @@
 	# Use default SD card detect GPIO configuration
 	register "sdcard_cd_gpio_default" = "GPP_E15"
 
-	# PCH Trip Temperature in degree C
-	register "pch_trip_temp" = "75"
-
 	device cpu_cluster 0 on
 		device lapic 0 on end
 	end