thermal: Set 80degC as control temperature at LIGHT severity

High throttling was observed on BIG cores resulting in device
sluggishness when the skin temperature hit LIGHT severity.
Current Tj control temp is set to 75 degC when LIGHT severity
is set for A0 based devices. This change is to increase the
Tj control temperature to 80 degC, same as B0 soc.

Bug: 229682004
Test: Build and boot on device. Check Tj control temperature
setting at LIGHT severity
Signed-off-by: Sayanna Chandula <sayanna@google.com>
Change-Id: I67219937f89a9edec6fcf6083f4814d29ef600f2