Merge branch 'fix-avs-huawe-confdb-normalizer' into 'master'

Huawei.VRP. ConfDB normalizer for ipv6 link-local address.

See merge request !3810

(cherry picked from commit 424ca8e2)

6bada2dd Huawei.VRP. ConfDB normalizer.
999bf0fe Fix black.
7 jobs for !3813 with cherry-pick-424ca8e2 in 15 minutes and 41 seconds (queued for 2 seconds)
merge request