dt-bindings: net: dsa: b53: add BCM53101 support

BCM53101 is a ethernet switch, very similar to the BCM53115.

Signed-off-by: Claus Stovgaard <claus.stovgaard@prevas.dk>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250217080503.1390282-2-claus.stovgaard@gmail.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>