radv: Only use PKT3_OCCLUSION_QUERY when it doesn't hang.

radv: Only use PKT3_OCCLUSION_QUERY when it doesn't hang.

PKT3_OCCLUSION_QUERY hangs when used in a nested IB. This only
calls it when in a primary command buffer and we change
GetQueryPoolResults to not need it. CmdCopyQueryPoolResults
still needs it so we break that behavior for secondary command buffers.
However, that would hang already and using an unitialized value is
better than a hang.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Cc: 13.0 17.0 <mesa-stable@lists.freedesktop.org>