net: hns3: fix an incorrect comment for num_tqps in struct hclgevf_dev

struct hclgevf_dev stands for VF device, its field num_tqps
indicates the number of VF's task queue pairs, so the comment
is incorrect, replace 'PF' with 'VF'.
Reported-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h

@@ -278,7 +278,7 @@ struct hclgevf_dev {
 	struct semaphore reset_sem;	/* protect reset process */
 
 	u32 fw_version;
-	u16 num_tqps;		/* num task queue pairs of this PF */
+	u16 num_tqps;		/* num task queue pairs of this VF */
 
 	u16 alloc_rss_size;	/* allocated RSS task queue */
 	u16 rss_size_max;	/* HW defined max RSS task queue */