Add restrictions to VLAN Splinters settings
Add restrictions to VLAN Splinters settings

Closes-Bug: #1346266

Change-Id: I78eb507c3948dd116d4e829185668ffd5a5cdf69

huntxu/fuel-web,SmartInfrastructures/fuel-web-dev,nebril/fuel-web,nebril/fuel-web,eayunstack/fuel-web,koder-ua/nailgun-fcert,nebril/fuel-web,zhaochao/fuel-web,prmtl/fuel-web,prmtl/fuel-web,stackforge/fuel-web,nebril/fuel-web,SmartInfrastructures/fuel-web-dev,stackforge/fuel-web,prmtl/fuel-web,koder-ua/nailgun-fcert,nebril/fuel-web,prmtl/fuel-web,zhaochao/fuel-web,zhaochao/fuel-web,koder-ua/nailgun-fcert,huntxu/fuel-web,eayunstack/fuel-web,koder-ua/nailgun-fcert,SmartInfrastructures/fuel-web-dev,prmtl/fuel-web,huntxu/fuel-web,eayunstack/fuel-web,SmartInfrastructures/fuel-web-dev,stackforge/fuel-web,eayunstack/fuel-web,zhaochao/fuel-web,eayunstack/fuel-web,huntxu/fuel-web,huntxu/fuel-web,SmartInfrastructures/fuel-web-dev,zhaochao/fuel-web