fix: dev: Remember neighbor entry port to access ofproto and call host delete.
fix: dev: Remember neighbor entry port to access ofproto and call host delete.

TG-1831

On arp failure because of port shut, arp/neighbor entry port and mac will become
invalid, but we need port to access ofproto to invoke host entry cleanup from
asic. Update and free the port after invoking ofproto host delete.

Change-Id: I841cd887fd7b536ebf70b7a3cc6732a560f8f40b
Signed-off-by: aslammdkhan <abf0269947c634937f12bd3da7faa1532a0f35b1@hpe.com>

open-switch/ops-switchd,open-switch/ops-switchd,open-switch/ops-switchd