Pre check to make sure the time is synced bwteen the nodes
	Abort install_contrail and setup_all if time is not synced between nodes.

Change-Id: I781d7603cf9fd88fa9e3a2f2cf392b7c2b1ab124
Merge "Pre check to make sure the time is synced bwteen the nodes 	Abort install_contrail and setup_all if time is not synced between nodes." into R1.10