include: linux: Destage VCHIQ interface headers

include: linux: Destage VCHIQ interface headers

Move the VCHIQ headers from drivers/staging/vc04_services/include to
include/linux/raspberrypi

This is done so that they can be shared between the VCHIQ interface
(which is going to be de-staged in a subsequent commit from staging) and
the VCHIQ drivers left in the staging/vc04_services (namely
bcm2835-audio, bcm2835-camera).

The include/linux/raspberrypi/ provides a central location to serve both of
these areas.

Co-developed-by: Umang Jain <umang.jain@ideasonboard.com>
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jai Luthra <jai.luthra@ideasonboard.com>
Link: https://patch.msgid.link/20251029-vchiq-destage-v3-4-da8d6c83c2c5@ideasonboard.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>