staging: vchiq: Move defines into core header

Those are only used in the core vchiq code, while present in vchiq's
'public' API header. Move them into the right place.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Link: https://lore.kernel.org/r/20200629150945.10720-47-nsaenzjulienne@suse.de


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