mb/google/brya/var/xol: Update thermal policy

Update initial DTT policy and TCC setting for Xol. The setting values
are from internal power team.

- Critical CPU temparature: 105 -> 99
- TCC offset: 90 -> 94

BUG=b:323989520
BRANCH=firmware-brya-14505.B
TEST=FW_NAME=xol emerge-brya coreboot chromeos-bootimage

Change-Id: I546b313a1e6af16029309174a5bed2d1e4aa4d11
Signed-off-by: Seunghwan Kim <sh_.kim@samsung.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80410
Reviewed-by: Eric Lai <ericllai@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>

src/mainboard/google/brya/variants/xol/overridetree.cb

@@ -12,6 +12,8 @@ chip soc/intel/alderlake
 	# display flickering issue.
 	register "disable_dynamic_tccold_handshake" = "true"
 
+	register "tcc_offset" = "6"	# TCC of 94
+
 	register "platform_pmax" = "145"
 
 	register "usb2_ports[0]" = "{
@@ -200,7 +202,7 @@ chip soc/intel/alderlake
 
 				## Critical Policy
 				register "policies.critical" = "{
-					[0] = DPTF_CRITICAL(CPU,               105, SHUTDOWN),
+					[0] = DPTF_CRITICAL(CPU,                99, SHUTDOWN),
 					[1] = DPTF_CRITICAL(TEMP_SENSOR_0,      85, SHUTDOWN),
 					[2] = DPTF_CRITICAL(TEMP_SENSOR_1,      85, SHUTDOWN),
 					[3] = DPTF_CRITICAL(TEMP_SENSOR_2,      85, SHUTDOWN),