Add longer sleep between vnode setup.

tmcd/common/bootvnodes

@@ -133,6 +133,6 @@ foreach my $vnode (keys(%curvnodelist)) {
     }
     print "Setting up vnode $vnode ...\n";
     system("vnodesetup -b $jailflag $vnode");
-    sleep(5);
+    sleep(10);
 }
 exit(0);