ub: ubcore provide add and delete eid ops

driver inclusion
category: feature
bugzilla: NA
CVE: NA

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Ubcore provide add_eid and delete_eid ops which will call UBN vendor driver
registered methods to set/unset eid.

Signed-off-by: Guoxin Qian <qianguoxin@huawei.com>
Signed-off-by: Yizhen Fan <fanyizhen@huawei.com>