start_virt has issues with recognizing socket on tdx 1.5, no issues on tdx 1.0

[wenhuizhang]

start_virt uses virtqemud, which seems like is not included in the tdx 1.5 stack

root@n73-164-13:/opt/tdx-2023ww41/mvp-tdx-stack-host-ubuntu-22.04/jammy/amd64# sudo systemctl restart virtqemud
Failed to restart virtqemud.service: Unit virtqemud.service not found.