ARM: dts: BCM5301X: Relicense Christian's code to the GPL 2.0+ / MIT

Move code added by Christian to the bcm-ns.dtsi which uses dual
licensing. That syncs more Northstar code to be based on the same
licensing schema.

Cc: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Christian Lamparter <chunkeey@gmail.com>
Link: https://lore.kernel.org/r/20230605061049.16136-1-zajec5@gmail.com


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