radeonsi: fix compute-based culling with VERTEX_COUNTER_GDS_MODE == 1

Discovered when testing Sienna Cichlid.

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6282>
1 file changed