Previously, the following network block did not update using
docker-compose:
```
networks:
default:
driver: bridge
driver_opts:
mtu: 9000
```
In the API, the network options were previously not being handled when the
network was being created. I translated the docker options into podman
options, and added the options to the network.
When doing `podman network inspect <network>`, the results now contain
`"mtu": "9000"`
Fixes: #14482
Signed-off-by: Jake Correnti <jcorrenti13@gmail.com>