Calls to sonic-cfggen is CPU expensive. This PR reduces calls to
sonic-cfggen to one call during startup when starting swss service.
singed-off-by: Tamer Ahmed <tamer.ahmed@microsoft.com>
Arp update process was not being started due to an issue with
the directory name having an extra 'd' in supervisor as in
'/etc/supervisord/conf.d/arp_update.conf'.
signed-off-by: Tamer Ahmed <tamer.ahmed@microsoft.com>