Enable/disable rpi status led

@volumio I have not tried the beta. But can you add a setting where we can disable the status-led on rpi? That’s easy enough via ssh, but it would be great with an option.

What is the advantage of doing it?
Can you provide the command to launch to make it ?

config.txt:

Disable the ACT LED.
dtparam=act_led_trigger=none

dtparam=act_led_activelow=off

Disable the PWR LED.
dtparam=pwr_led_trigger=none

dtparam=pwr_led_activelow=off/boot