Add new mechanism to get thermal notification

Basically the serverinfo gets the information from /sys/class/thermal/thermal_zone*/temp.
At the same time some AMD motherboards and their chipsets do not store the information there, but in hwmon.
Eg, I have hp microserver, and it grabs and stores the temperature data :

k10temp:
temp1 /sys/devices/pci0000:00/0000:00:18.3/hwmon/hwmon3/temp1_input

w83795adg-i2c-1-2f:
temp1 /sys/devices/pci0000:00/0000:00:14.0/i2c-1/1-002f/temp1_input
temp2 /sys/devices/pci0000:00/0000:00:14.0/i2c-1/1-002f/temp2_input
temp5 /sys/devices/pci0000:00/0000:00:14.0/i2c-1/1-002f/temp5_input

jc42-i2c-0-18
temp1 /sys/devices/pci0000:00/0000:00:14.0/i2c-0/0-0018/hwmon/hwmon0/temp1_input

jc42-i2c-0-19
temp1 /sys/devices/pci0000:00/0000:00:14.0/i2c-0/0-0019/hwmon/hwmon0/temp1_input 

And

# find /sys -name "temp*_input"
/sys/devices/pci0000:00/0000:00:18.3/hwmon/hwmon3/temp1_input
/sys/devices/pci0000:00/0000:00:14.0/i2c-1/1-002f/temp1_input
/sys/devices/pci0000:00/0000:00:14.0/i2c-1/1-002f/temp5_input
/sys/devices/pci0000:00/0000:00:14.0/i2c-1/1-002f/temp2_input
/sys/devices/pci0000:00/0000:00:14.0/i2c-0/0-0019/hwmon/hwmon1/temp1_input
/sys/devices/pci0000:00/0000:00:14.0/i2c-0/0-0018/hwmon/hwmon0/temp1_input

As well as, lm-sensors produces good data.

Is that possible to grab the data in a more universal way, eg from hwmon class, but not from the thermal_zone class?

Read more here https://github.com/Mellanox/mlxsw/wiki/Temperature-and-Fan-Control

Locate the existing serverinfo code that reads /sys/class/thermal/thermal_zone*/temp, then compare its parsing with the hwmon temp*_input paths shown here. Use the AMD examples and lm-sensors reference to define coverage, and verify that temperatures from hwmon are surfaced alongside existing thermal-zone data.