CS-14980: Fix blank PF/LB instance name label
CS-14980: Fix blank PF/LB instance name label

Show VM ID if .displayname and .instancename are not present, as is
the case with KVM-type virtual machines that don't have a custom name.

cinderella/incubator-cloudstack,mufaddalq/cloudstack-datera-driver,argv0/cloudstack,resmo/cloudstack,mufaddalq/cloudstack-datera-driver,GabrielBrascher/cloudstack,jcshen007/cloudstack,mufaddalq/cloudstack-datera-driver,resmo/cloudstack,resmo/cloudstack,resmo/cloudstack,jcshen007/cloudstack,GabrielBrascher/cloudstack,jcshen007/cloudstack,wido/cloudstack,jcshen007/cloudstack,cinderella/incubator-cloudstack,argv0/cloudstack,jcshen007/cloudstack,DaanHoogland/cloudstack,argv0/cloudstack,cinderella/incubator-cloudstack,resmo/cloudstack,cinderella/incubator-cloudstack,DaanHoogland/cloudstack,wido/cloudstack,wido/cloudstack,GabrielBrascher/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,mufaddalq/cloudstack-datera-driver,wido/cloudstack,cinderella/incubator-cloudstack,GabrielBrascher/cloudstack,DaanHoogland/cloudstack,GabrielBrascher/cloudstack,mufaddalq/cloudstack-datera-driver,GabrielBrascher/cloudstack,resmo/cloudstack,argv0/cloudstack,wido/cloudstack,wido/cloudstack,argv0/cloudstack,mufaddalq/cloudstack-datera-driver,wido/cloudstack,argv0/cloudstack,resmo/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,GabrielBrascher/cloudstack,DaanHoogland/cloudstack,DaanHoogland/cloudstack