Made changes so that Lldp docker start using py3 of sonic-db-syncd
submodule update sonic-db-syncd
5cc29a1b32d8d1f4dfbc967bfea2727c50a49c76 (HEAD -> master, origin/master, origin/HEAD) Changes to convert sonic-dbsyncd from python 2 to 3
Signed-off-by: Abhishek Dosi <abdosi@microsoft.com>