hns3 udma: add support of UM JFS

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I85R2F


CVE: NA

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UM(Unreliable Message) mode of JFS can send message
to any JFR but not reliable.

Signed-off-by: Weibo Zhao <zhaoweibo3@huawei.com>