Introspection naturally happens in large bulks, after which it's inactive.
Small pool for DHCP addresses means that we'll have conflicts due to how
dnsmasq distributes them by default - using hashing. This change tells dnsmasq
to allocate IP addresses sequentially instead to avoid these conflicts.
The drawback of this option is that long-running clients may switch IP
addresses if their lease expires. This is not a concern for short introspection
process.
Change-Id: I0f08609a9f72799ef9f62216041f2b2b9795afd5