Neutron L3 fwd event handling from southbound is missing

When interface events originate from the southbound side of ovsdb, the L3 forwarding feature in ovsdb expects to be notified. W/out this code, flows
needed to program L3 functionality will get skipped.

Due to my mistake, the logic for connecting the southbound event to the
already implemented neutron port handler is missing. This bug is created
to account for the the small code missing in L3 handler; past the code
freeze.

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https://git.opendaylight.org/gerrit/#/c/10862/1

Madhu Venugopal 1:14 PM
Patch Set 1: Code-Review-1

Can you identify the bug this is trying to solve ? We are in M5 code freeze and only bugfixes are permitted into the branch. If there is a bug, please open a bug in bugs.opendaylight.org and mention it in the commit message.