radv/gfx9: fix 3d image to image transfers on compute queues.
This fixes some of the broken: dEQP-VK.synchronization.op.multi_queue.*64x64x8* tests. Fixes: e38685cc 'Revert "radv: disable support for VEGA for now."' Reviewed-by:Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> Signed-off-by:
Dave Airlie <airlied@redhat.com>