net: hns3: merge mac state HCLGE_MAC_TO_DEL and HCLGE_MAC_DEL_FAIL

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

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HCLGE_MAC_DEL_FAIL is a middle state for mac address handling,
it can be merged with HCLGE_MAC_TO_DEL.

Btw, this patch also change the enum name from HCLGE_MAC_ADDR_STATE
to HCLGE_MAC_NODE_STATE, for it's used to indicate the state of
mac node.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: shenhao <shenhao21@huawei.com>
Reviewed-by: Zhong Zhaohui <zhongzhaohui@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>