vmx: Add support for VDS interface

Since we cannot properly plug a new VM into the distributed switch, we can at
least report the provided pieces of information, so that XML editing still works
even for VMs with such interfaces.

https://bugzilla.redhat.com/show_bug.cgi?id=1988211

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Reviewed-by: Ján Tomko <jtomko@redhat.com>

tests/vmx2xmltest.c

@@ -237,6 +237,7 @@ mymain(void)
     DO_TEST("ethernet-vpx");
     DO_TEST("ethernet-other");
     DO_TEST("ethernet-dummy");
+    DO_TEST("ethernet-vds");
 
     DO_TEST("serial-file");
     DO_TEST("serial-device");