airoha: raise CPU critical temperature from 110°C to 120°C

airoha: raise CPU critical temperature from 110°C to 120°C

The IC maximum operating temperature is 125C. Raise the CPU critical
temperature from 110C to 120C to account for possible temperature sensor
error.

This keeps the trip point below the IC maximum while avoiding premature
critical thermal protection.

Tested on Airoha internal platforms without thermal protection issues.

Signed-off-by: Yalei Zang <yalei.zang@airoha.com>
Link: https://github.com/openwrt/openwrt/pull/24367
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>