Increase keep alive timeout
Increase keep alive timeout

Signed-off-by: Tom Flynn <abc7c57a6537c493534eb3847500f37bef7b716d@gmail.com>
Change-Id: Id90c8b0b43b6f5d6810bf8cd372922e86c86471b

opendaylight/opflex,opendaylight/opflex,opendaylight/opflex,opendaylight/opflex