Remove puppet firewall rule and add dhcp
Remove puppet firewall rule and add dhcp

Puppet communicates only internally, all servers are already whitelisted, so
there's no reason to open the firewall for this specific port.

Also: Add dhcp ports (67/udp and 547/udp6) as accepted traffic.

Change-Id: I667d9d3f3b785c5e88615e1a3fca98887f729e81

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