Changes to allow setting of MTU size and jumbo frames.
Changes to allow setting of MTU size and jumbo frames.

aspiers/automation,vmoravec/automation,gosipyan/automation,SUSE-Cloud/automation,SUSE-Cloud/automation,vmoravec/automation,aspiers/automation,aspiers/automation,gosipyan/automation,gosipyan/automation,gosipyan/automation,vmoravec/automation,aspiers/automation,vmoravec/automation,SUSE-Cloud/automation,SUSE-Cloud/automation