Merge branch 'patch-avs-discovery-confdb-lacp' into 'master'

Add aggregated interface and LACP protocol to Interface and Caps Discovery.

See merge request !3815

(cherry picked from commit 86eeec16)

b699c4e3 Add aggregated interface and LACP protocol to Interface and Caps Discovery.
b5d4cf21 Fix flake.
7 jobs for !3817 with cherry-pick-86eeec16 in 24 minutes and 1 second (queued for 2 seconds)
merge request