Change default configuration about IPv6

Change-Id: I393a26ab3a0b9d7db57142b3c19d08df05c9c3b4
diff --git a/tools/package/etc/samples/org.onosproject.provider.host.impl.HostLocationProvider.cfg b/tools/package/etc/samples/org.onosproject.provider.host.impl.HostLocationProvider.cfg
index 952f8ce..6d3a50d 100644
--- a/tools/package/etc/samples/org.onosproject.provider.host.impl.HostLocationProvider.cfg
+++ b/tools/package/etc/samples/org.onosproject.provider.host.impl.HostLocationProvider.cfg
@@ -10,4 +10,4 @@
 #
 # Enable using IPv6 Neighbor Discovery by the Host Location Provider.
 #
-# ipv6NeighborDiscovery = false
+# ipv6NeighborDiscovery = true
diff --git a/tools/package/etc/samples/org.onosproject.proxyarp.ProxyArp.cfg b/tools/package/etc/samples/org.onosproject.proxyarp.ProxyArp.cfg
index 4746c5b..108de13 100644
--- a/tools/package/etc/samples/org.onosproject.proxyarp.ProxyArp.cfg
+++ b/tools/package/etc/samples/org.onosproject.proxyarp.ProxyArp.cfg
@@ -5,4 +5,4 @@
 #
 # Enable IPv6 Neighbor Discovery.
 #
-# ipv6NeighborDiscovery = false
+# ipv6NeighborDiscovery = true