Added optional automatic reboot
Added optional automatic reboot

Optionally reboot the compute node after vrouter kernal module
installation/upgrade. This reboot is required for vrouter to work properly.

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