align systemvm details and user vm detail in a more intuitive way

[DaanHoogland]

in PR #9721 details are being added for system vms. This is fine but they are now created in a table called user_vm_details. This is not ideal and a better implementation would be nice.

ISSUE TYPE

• Improvement Request

COMPONENT NAME

CLOUDSTACK VERSION

CONFIGURATION

OS / ENVIRONMENT

SUMMARY

STEPS TO REPRODUCE

EXPECTED RESULTS

ACTUAL RESULTS