[Fedora] Install dnsmasq on n-cpu less host

The libvirt-daemon-driver-network pulls the dnsmasq,
on hosts where the n-cpu installed with libvirt backend.

But nothing installs it if you have only n-net or q-dhcp,
on the given hosts.

dnsmasq-utils does not depends on dnsmasq,
because it can work with other local dhcp servers.

Change-Id: I17a769df3bd51ca608c1728e892009125eea42ed
diff --git a/files/rpms/nova b/files/rpms/nova
index e05d0d7..0c828f4 100644
--- a/files/rpms/nova
+++ b/files/rpms/nova
@@ -1,5 +1,6 @@
 MySQL-python
 curl
+dnsmasq # for nova-network
 dnsmasq-utils # for dhcp_release
 ebtables
 gawk