Merge pull request #53535 from nicklesimba/macvlan-docs-update

OCPBUGS-2665: Added notice for configuring macvlan

Author: jab-rh

modules/nw-multus-macvlan-object.adoc

@@ -31,7 +31,7 @@ plugin:
 
 |`master`
 |`string`
-|The Ethernet, bonded, or VLAN interface to associate with the virtual interface. If a value is not specified, then the host system's primary Ethernet interface is used.
+|The host network interface to associate with the newly created macvlan interface. If a value is not specified, then the default route interface is used.
 
 |`mtu`
 |`string`
@@ -43,6 +43,11 @@ plugin:
 
 |====
 
+[NOTE]
+====
+If you specify the `master` key for the plugin configuration, use a different physical network interface than the one that is associated with your primary network plugin to avoid possible conflicts.
+====
+
 [id="nw-multus-macvlan-config-example_{context}"]
 == macvlan configuration example