MB-49031 Set lastActiveTime when sending sync message

Otherwise, endpoint would commit harakiri

Change-Id: I1e8df8c2c45f2a7965169d6ce86d906dd301045e

secondary/dataport/endpoint.go

@@ -485,6 +485,7 @@ loop:
 				}
 				break
 			}
+			lastActiveTime = time.Now()
 		case <-harakiri.C:
 			if time.Since(lastActiveTime) > endpoint.harakiriTm {
 				logging.Infof("%v committed harakiri\n", endpoint.logPrefix)