drm/ttm: fix logic inversion in ttm_eu_reserve_buffers

That should have been max, not min.
Signed-off-by: Christian König <christian.koenig@amd.com>
Fixes: c8d4c18b ("dma-buf/drivers: make reserving a shared slot mandatory v4")
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220411134537.2854-1-christian.koenig@amd.com

drivers/gpu/drm/ttm/ttm_execbuf_util.c

@@ -101,7 +101,7 @@ int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
 			continue;
 		}
 
-		num_fences = min(entry->num_shared, 1u);
+		num_fences = max(entry->num_shared, 1u);
 		if (!ret) {
 			ret = dma_resv_reserve_fences(bo->base.resv,
 						      num_fences);