Add RasPi for fiber monitoring system to dnsmasq

The Ras-pi used fiber monitoring system (FMS), which is the device to check connection if the cable B is connected to SpS and PFI (or SuNSS), was shipped to Subaru with the Cable B1. The dnsmasq needs to be modified to have the host.

Since there is no section for the Cable B allocated in the current IP range I'd like to add it to either PFI or MCS section..