CA-242450: Fix vlan check to allow vlan id 0
CA-242450: Fix vlan check to allow vlan id 0

srowe/xen-api,euanh/xen-api,euanh/xen-api,euanh/xen-api,euanh/xen-api,srowe/xen-api,euanh/xen-api,srowe/xen-api,srowe/xen-api,euanh/xen-api,srowe/xen-api