net: hns3: modify magic number in hclge_dbg_dump_ncl_config

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

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This patch modifies a magic number in hclge_dbg_dump_ncl_config,
which can improve the readability of the code.

Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: shenhao <shenhao21@huawei.com>
Reviewed-by: Zhong Zhaohui <zhongzhaohui@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>