net: hns3: Use enums instead of magic number in hclge_is_special_opcode

This patch does bit of a clean-up by using already defined enums for
certain values in function hclge_is_special_opcode(). Below enums from
have been used as replacements for magic values:

enum hclge_opcode_type{
	<snip>
	HCLGE_OPC_STATS_64_BIT		= 0x0030,
	HCLGE_OPC_STATS_32_BIT		= 0x0031,
	HCLGE_OPC_STATS_MAC		= 0x0032,
	<snip>
};
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c

@@ -190,7 +190,11 @@ static int hclge_cmd_csq_done(struct hclge_hw *hw)
 
 static bool hclge_is_special_opcode(u16 opcode)
 {
-	u16 spec_opcode[3] = {0x0030, 0x0031, 0x0032};
+	/* these commands have several descriptors,
+	 * and use the first one to save opcode and return value
+	 */
+	u16 spec_opcode[3] = {HCLGE_OPC_STATS_64_BIT,
+		HCLGE_OPC_STATS_32_BIT, HCLGE_OPC_STATS_MAC};
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(spec_opcode); i++) {