totemip: Support bind to exact address

Logic for binding now works in following way:

• Try to find exact match
• If not exact match is found, use first found network address

This allows set concrete IP even if network settings contains two IPs on
same network.

Signed-off-by: Jan Friesse <jfriesse@redhat.com>
Reviewed-by: Steven Dake <sdake@redhat.com>