Description of problem: 

Due to new kernel patch here [1], the PF and VF representors are linked to their parent PCI device.

Old Structure:
The structure of VF's PCI Address/physfn/net contains only the PF of that VF

$ ls /sys/bus/pci/devices/<vf-pci-addre>/physfn/net/
enp2s0f0

$ ls -l /sys/class/net
...
lrwxrwxrwx 1 root root 0 Aug 17 11:11 enp2s0f0_0 -> ../../devices/virtual/net/enp2s0f0_0
lrwxrwxrwx 1 root root 0 Aug 17 11:11 enp2s0f0_1 -> ../../devices/virtual/net/enp2s0f0_1
lrwxrwxrwx 1 root root 0 Aug 17 11:11 enp2s0f0_2 -> ../../devices/virtual/net/enp2s0f0_2
lrwxrwxrwx 1 root root 0 Aug 17 11:11 enp2s0f0_3 -> ../../devices/virtual/net/enp2s0f0_3
...

New Structure:
The structure of VF's PCI Address/physfn/net contains the PF of that VF and the VF representors

$ ls /sys/bus/pci/devices/<vf-pci-addre>/physfn/net/
enp3s0f0 enp3s0f0_0 enp3s0f0_1 enp3s0f0_2 enp3s0f0_3

$ ls -l /sys/class/net
...
lrwxrwxrwx. 1 root root 0 Aug 17 08:43 enp3s0f0_0 -> ../../devices/pci0000:00/0000:00:02.0/0000:03:00.0/net/enp3s0f0_0
lrwxrwxrwx. 1 root root 0 Aug 17 08:43 enp3s0f0_1 -> ../../devices/pci0000:00/0000:00:02.0/0000:03:00.0/net/enp3s0f0_1
lrwxrwxrwx. 1 root root 0 Aug 17 08:43 enp3s0f0_2 -> ../../devices/pci0000:00/0000:00:02.0/0000:03:00.0/net/enp3s0f0_2
lrwxrwxrwx. 1 root root 0 Aug 17 08:43 enp3s0f0_3 -> ../../devices/pci0000:00/0000:00:02.0/0000:03:00.0/net/enp3s0f0_3
...

[1] https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=123f0f53dd64b67e34142485fe866a8a581f12f1

Version-Release number of selected component (if applicable):
we need to update os-vif to support it as well

How reproducible:
 

Steps to Reproduce:
1.create direct port with switchdev capabilities
2.boot vm with that port


Actual results:
os-vif will select VF representor instead of the PF

Expected results:
vm should boot successfully 

Additional info:

need to merged [1] and [2] they already merged to master
[1]- https://review.opendev.org/c/openstack/os-vif/+/765914  
[2]- https://review.opendev.org/c/openstack/os-vif/+/765974