ripd: considering a interface with 2 or more IP

ripd: considering a interface with 2 or more IP

This commit fixes these three issues:

1) rinfo is used for rip packet sending not tmp_rinfo
2) With RIP_SPLIT_HORIZON and an interface with more than 1 ip addresses
we will not send the routes out an interface that they originate on
3) With RIP_SPLIT_HORIZON_POISONED_REVERSE and an interface with
more than 1 ip address we will not send out ipA with a metric of 16
and ipb with a metric of 1.  Both will be 16 now.

Signed-off-by: lyq140 <34637052+lyq140@users.noreply.github.com>