Update doc:

1) https://docs.redhat.com/en/documentation/openshift_container_platform/4.20/html/virtualization/networking#virt-attaching-vm-to-secondary-udn_virt-connecting-vm-to-secondary-udn

Replace the existing note:
Note 

When running OpenShift Virtualization on IBM Z® using an OSA card, be aware that the OSA card only forwards network traffic to devices that are registered with the OSA device. As a result, any traffic destined for unregistered devices is not forwarded.

With the updated note:
Note 
When running OpenShift Virtualization on IBM Z®, be aware that certain network interfaces such as OSA, RoCE, and Hipersockets only forward network traffic to devices that are registered with the respective interface. As a result, any traffic destined for unregistered devices is not forwarded. For more information, see OSA interface traffic forwarding (IBM documentation).

2) https://docs.redhat.com/en/documentation/openshift_container_platform/4.20/html/virtualization/networking#virt-attaching-vm-secondary-network-cli_virt-connecting-vm-to-linux-bridge

Replace the existing note:
Note 
When running OpenShift Virtualization on IBM Z® using an OSA card, you must register the MAC address of the device. For more information, see OSA interface traffic forwarding (IBM documentation).

With the updated note:
Note 
When running OpenShift Virtualization on IBM Z® using OSA, RoCE, or Hipersockets interfaces, you must register the MAC address of the device. For more information, see OSA interface traffic forwarding (IBM documentation).

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