realtek: Netgear GS110TPPv1: define port LEDs

realtek: Netgear GS110TPPv1: define port LEDs

Add the port LEDs for lan1-lan8 to the device tree for the GS110TPP v1.
To reproduce the same behaviour as stock firmware, green should be
LINK/ACT 1G, and amber should be LINK/ACT 100M/10M:

    for i in $(seq 1 8); do
        echo 13 > /sys/class/leds/green:lan-$i/rtl_hw_trigger
        echo realtek-switchport > /sys/class/leds/green:lan-$i/trigger
        echo f > /sys/class/leds/amber:lan-$i/rtl_hw_trigger
        echo realtek-switchport > /sys/class/leds/amber:lan-$i/trigger
    done

Signed-off-by: Sander Vanheule <sander@svanheule.net>