ARM: dts: BCM5301X: use color and function on ASUS RT-AC3100 and RT-AC88U

ARM: dts: BCM5301X: use color and function on ASUS RT-AC3100 and RT-AC88U

As the label property for LEDs is deprecated, use the color and function
properties to describe the LEDs on the device tree file for ASUS RT-AC3100
and ASUS RT-AC88U. Reorder the LED and button nodes in alphabetical order.

Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/20240414-for-soc-asus-rt-ac3100-improvements-v1-1-0e40caf1a70a@arinc9.com
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>