SOLVED THE PROBLEM!
I finally found another way to fix the problem by :)
(1) Create 2 Linux Bridges for 2 USB NICs Asix 88179 named vmbr1, vmbr2 in Proxmox Server
(2) On the VM (OpenWrt) add 2 network bridges with:
Virtio=f8:e4:3b:4f:9e:57,bridge=vmbr1,firewall=1,queues=8...