Add support for UM3504D

[flav-code]

Add support for UM3504D

[dominiksalvet]

Please fill the following template:

Environment
State your AFC version, OS version, and CPU name.

Basic configuration
If only temperatures were set and they worked, add output of:

• sudo asus-fan-control get-temps (new default temperatures for your device)
• sudo asus-fan-control model-info

Advanced configuration
If advanced configuration was used, add output of:

• sudo FALLBACK_ADDRS='<addrs>' FALLBACK_TEMPS='<temps>' asus-fan-control model-info

It does not work
If neither configuration was working for your device, community involvement is required. Please provide some information so the community can build on something. Why does AFC not work? What have you tried?

Additional context
Add any additional context.