Add support for ROG STRIX Z490-I GAMING.

[bracken777]

Tested on my Linux workstation:

sensors 'asusec-*'

asusec-isa-0000
Adapter: ISA adapter
Chipset:      +62.0°C  
T_Sensor:     +29.0°C  
VRM:          +41.0°C  

[zeule]

Thank you for the contribution! Could you, please, attach a DSDT dump for the board as well? And rebase on the current master to create a single commit with all the changes, please? If you want me to submit the change to the mainline kernel, please sing off the commit (git commit -s).

[zeule]

ping?

[bracken777]

Ooops, sorry for the delay, will take a look later tonight.

[zeule]

Thanks!