dt-bindings: wireless: bcm4329-fmac: Use wireless-controller.yaml schema

dt-bindings: wireless: bcm4329-fmac: Use wireless-controller.yaml schema

The wireless-controller schema specifies local-mac-address as
used in the bcm4329-fmac device nodes of Apple silicon devices
(arch/arm64/boot/dts/apple).

Fixes `make dtbs_check` for those devices.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Janne Grunau <j@jannau.net>
Signed-off-by: David Heidelberg <david@ixit.cz>
Link: https://patch.msgid.link/20250324-dt-bindings-network-class-v5-3-f5c3fe00e8f0@ixit.cz
Signed-off-by: Johannes Berg <johannes.berg@intel.com>