mlx5 core: Fix __udivdi3 when compiling for 32 bit arches

Cc: Eli Cohen <eli@mellanox.com>
Signed-off-by: NTim Gardner <tim.gardner@canonical.com>
Acked-by: NRandy Dunlap <rdunlap@infradead.org>
Reported-by: NRandy Dunlap <rdunlap@infradead.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlx5/core/debugfs.c

@@ -156,7 +156,7 @@ static ssize_t average_read(struct file *filp, char __user *buf, size_t count,
 	stats = filp->private_data;
 	spin_lock(&stats->lock);
 	if (stats->n)
-		field = stats->sum / stats->n;
+		field = div64_u64(stats->sum, stats->n);
 	spin_unlock(&stats->lock);
 	ret = snprintf(tbuf, sizeof(tbuf), "%llu\n", field);
 	if (ret > 0) {