The init system parser (serde deny_unknown_fields) rejects [service]
sections in .target files. The P4-initfs-dbus-services patch was
creating 05_boot_essential.target and 12_boot_late.target with a
no-op [service] section (cmd=/usr/bin/true). Removed those sections
so targets only contain [unit].
This eliminates "unknown field service, expected unit" init warnings
that could prevent proper service dependency resolution.
vasilito
907d447369