Fixed the errors and other issues
Fixed the errors and other issues

* Fixed the default for vrouter_physical_interface
* Fixed the errors due to non-existant exec (network_restart) which was removed
while adding autoreboot

hkumarmk/jiocloud-contrail,anshprat/jiocloud-contrail,vpramo/jiocloud-contrail,anshprat/jiocloud-contrail,JioCloud/jiocloud-contrail,vpramo/jiocloud-contrail,vpramo/jiocloud-contrail,JioCloud/jiocloud-contrail,JioCloud/jiocloud-contrail,anshprat/jiocloud-contrail