only set initialized when available, so initialization is retried during host update
only set initialized when available, so initialization is retried during host update

hglkrijger/WALinuxAgent,Azure/WALinuxAgent,andyliuliming/WALinuxAgent,rjschwei/WALinuxAgent,rjschwei/WALinuxAgent,andyliuliming/WALinuxAgent,hglkrijger/WALinuxAgent,Azure/WALinuxAgent