radv: adjust IA_MULTI_VGT_PARAM.WD_SWITCH_ON_EOP at draw time

In preparation for the dynamic topology state.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5801>
3 files changed