crocus/query: poll the syncobj in the no wait situation

In the no wait, poll the syncobj and bail if it's hasn't signalled.
This fixes a bunch of deqp xfb tests on sandybridge

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11567>

src/gallium/drivers/crocus/crocus_query.c

@@ -676,8 +676,8 @@ crocus_get_query_result(struct pipe_context *ctx,
       }
       assert(READ_ONCE(q->map->snapshots_landed));
 #else
-      if (wait)
-         crocus_wait_syncobj(ctx->screen, q->syncobj, INT64_MAX);
+      if (crocus_wait_syncobj(ctx->screen, q->syncobj, wait ? INT64_MAX : 0))
+         return false;
 #endif
       calculate_result_on_cpu(devinfo, q);
    }