ARM: dts: BCM5301X: Add Wi-Fi regulatory mappings for Luxul devices

This allows setting FullMAC firmware regulatory domain.

Signed-off-by: Dan Haab <dan.haab@luxul.com>
Link: https://lore.kernel.org/r/20230705153251.739236-1-riproute@gmail.com


Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>