net: hns3: splice two "if" logic as one

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

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When checks tuple in hclge_fd_check_ext_tuple(), two nested "if" is used
as a logic judgment. It can be spliced as one,using "&&", which make code
more readability.

Signed-off-by: Guojia Liao <liaoguojia@huawei.com>
Signed-off-by: shenhao <shenhao21@huawei.com>
Reviewed-by: Zhong Zhaohui <zhongzhaohui@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>