staging: vc04_services: Implement vchiq_bus .remove

Implement the struct vchiq_bus .remove() so that cleanup
paths can be executed by the devices registered to this
bus, when being removed.

Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Link: https://lore.kernel.org/r/20240321130737.898154-5-umang.jain@ideasonboard.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>