OVSPatchPort patch ovs_type availability for OpenVSwitch

[zimbres]

Would be nice if Proxmox add option to handle patch ports for OpenVSwitch in UI.

I achieved a working configuration by:

/etc/network/interfaces

auto lo
iface lo inet loopback

auto enp2s0
iface enp2s0 inet manual
        ovs_type OVSPort
        ovs_bridge vmbr0

auto vlan100
iface vlan100 inet static
        address 192.168.100.254/24
        ovs_type OVSIntPort
        ovs_bridge vmbr0
        ovs_options tag=100

auto vlan1000
iface vlan1000 inet static
        address 192.168.1.254/24
        gateway 192.168.1.1
        ovs_type OVSIntPort
        ovs_bridge vmbr0
        ovs_options tag=1000

auto vlan172
iface vlan172 inet static
        address 172.16.1.1/24
        ovs_type OVSIntPort
        ovs_bridge vmbr0
        ovs_options tag=172

auto vmbr0
iface vmbr0 inet manual
        ovs_type OVSBridge
        ovs_ports enp2s0 vlan100 vlan1000 vlan172 patch0

auto patch0
iface patch0 inet manual
    ovs_bridge vmbr0
    ovs_type OVSPatchPort
    ovs_patch_peer patch2
    ovs_options vlan_mode=trunk trunk=5,10,100,1000

auto vmbr1
iface vmbr1 inet manual
        bridge-ports none
        bridge-stp off
        bridge-fd 0
        bridge-vlan-aware yes
        bridge-vids 2-4094

auto vmbr2
iface vmbr2 inet manual
    ovs_type OVSBridge
    ovs_ports patch2

auto patch2
iface patch2 inet manual
    ovs_bridge vmbr2
    ovs_type OVSPatchPort
    ovs_patch_peer patch0