.distro/spec: add missing dependencies for cloud-init
Jira: https://issues.redhat.com/browse/RHEL-41010
The cloud-init spec file in cs10 is missing large number of dependent
packages that were originally present in c9s spec file. Add them back.
Do not add dependencies that are no longer required (for example
python3-prettytable, python3-six and python3-netifaces).
Jira: https://issues.redhat.com/browse/RHEL-41010
Signed-off-by: Ani Sinha <anisinha@redhat.com>