Support for Snapdragon 8cx

[treibholz]

Probably also works for other Snapdragons, but I can only test it on my 8cx.

The code is not beautiful, but "works on my machine" :-) (Thinkpad X13s).

Based the output of sensors:

$ sensors
skin_temp_thermal-virtual-0
Adapter: Virtual device
temp1:        +32.7°C

cluster0_thermal-virtual-0
Adapter: Virtual device
temp1:        +33.7°C

cpu2_thermal-virtual-0
Adapter: Virtual device
temp1:        +32.6°C

cpu6_thermal-virtual-0
Adapter: Virtual device
temp1:        +32.3°C

cpu0_thermal-virtual-0
Adapter: Virtual device
temp1:        +32.6°C

cpu4_thermal-virtual-0
Adapter: Virtual device
temp1:        +32.6°C

nvme-pci-20100
Adapter: PCI adapter
Composite:    +29.9°C  (low  = -20.1°C, high = +77.8°C)
                       (crit = +81.8°C)
Sensor 1:     +29.9°C  (low  = -273.1°C, high = +65261.8°C)

ath11k_hwmon-pci-60100
Adapter: PCI adapter
temp1:        +33.0°C

pm8280_1_thermal-virtual-0
Adapter: Virtual device
temp1:        +32.6°C

qcom_battmgr_bat-virtual-0
Adapter: Virtual device
in0:           7.60 V
temp:         +30.3°C
power1:       -4.25 W

mem_thermal-virtual-0
Adapter: Virtual device
temp1:        +32.1°C

cpu3_thermal-virtual-0
Adapter: Virtual device
temp1:        +32.6°C

cpu7_thermal-virtual-0
Adapter: Virtual device
temp1:        +32.3°C

cpu1_thermal-virtual-0
Adapter: Virtual device
temp1:        +32.3°C

cpu5_thermal-virtual-0
Adapter: Virtual device
temp1:        +33.0°C

gpu_thermal-virtual-0
Adapter: Virtual device
temp1:        +31.5°C

pm8280_2_thermal-virtual-0
Adapter: Virtual device
temp1:        +30.6°C

[BenBE]

Mind to squash these two commits?