Addressing review comments from ipv6 commits

Change-Id: Ie3148b22d4b0424cc9e6cd7e11773d952f97b338
send RA to all nodes address

Change-Id: Iea84b102d2c924d30a4c5eebb00da352dd578049
Merge "Addressing review comments from ipv6 commits"
Merge "send RA to all nodes address"
Merge remote-tracking branch 'juniper/master' into retesting

Conflicts:
	src/vnsw/agent/controller/controller_peer.cc