media: atomisp: gc0310: Stop setting v4l2_subdev.fwnode to the endpoint fwnode

Endpoint matching is now handled by the v4l2-core and drivers no longer
should set v4l2_subdev.fwnode to the endpoint fwnode.

Link: https://lore.kernel.org/r/20230812133628.355812-1-hdegoede@redhat.com



Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>