dnsmasq: process is missing required capability NET_RAW

[Will Szumski]

Version: master
container engine: podman

Hitting this in the kayobe CI jobs:

```
Feb 27 17:45:45 np0036886979 ironic_dnsmasq[50078]: + echo 'Running command: '\''dnsmasq --no-daemon --conf-file=/etc/dnsmasq.conf'\'''
Feb 27 17:45:45 np0036886979 ironic_dnsmasq[50078]: + exec dnsmasq --no-daemon --conf-file=/etc/dnsmasq.conf
Feb 27 17:45:45 np0036886979 ironic_dnsmasq[50078]:
Feb 27 17:45:45 np0036886979 ironic_dnsmasq[50078]: dnsmasq: process is missing required capability NET_RAW
```

The weird thing is that I can't reproduce it locally. So could be to do with bounding capabilities.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/kolla-ansible/+/910501

[Will Szumski (willjs)]

I found this mailing list post explaining why we might need NET_RAW:

https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2019q1/012840.html