rdma: bugfix: make IPv6 support work

rdma: bugfix: make IPv6 support work

RDMA does not use sockets, so we cannot use many of the socket
helper functions, but we *do* use inet_parse() which gives
RDMA all the necessary details of the connection parameters.

However, when testing with libvirt, a simple IPv6 migration test failed
because we were not using getaddrinfo() properly.

This makes IPv6 migration over RDMA work.

Signed-off-by: Michael R. Hines <mrhines@us.ibm.com>
Message-id: 1375584894-9917-2-git-send-email-mrhines@linux.vnet.ibm.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>