net: hns3: refactor hclge_update_desc_vfid for extension

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7B8SA


CVE: NA

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Now, hclge_update_desc_vfid is used to set vf bitmap for batch operations.
But it used fixed description index, so it is hard to extend for more
scenario.

So this patch refactor description index in the function for reuse.

Fixes: a90bb9a5 ("net: hns3: Cleanup for endian issue in hns3 driver")
Signed-off-by: Jie Wang <wangjie125@huawei.com>