net: hns3: modify comment of macro HNAE3_MIN_VECTOR_NUM

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

--------------------------------------------

This patch modifies msi-x into misc for comment of macro
HNAE3_MIN_VECTOR_NUM.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: shenhao <shenhao21@huawei.com>
Reviewed-by: Zhong Zhaohui <zhongzhaohui@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>