Additional check to avoid error message in openstack when tag is used in...

Additional check to avoid error message in openstack when tag is used in network interfaces using an older microversion than 2.32

Change-Id: Ifa980814cf853dfe7d1423b4b6c33ea6bcb1cb2c
Signed-off-by: montesmoreno <pablo.montesmoreno@telefonica.com>