MB-44311 Use destination node from filtered solution for replica repair

When there is a transfer like (replica_repair) -> nodeA, nodeA->nodeB,
we filter the transfer to become (replica_repair) -> nodeB. However,
when generating the token, we set the destination node as nodeA i.e.
the destination node initially choosen by planner. This is leading
to rebalance failures

Change-Id: I0419e0ff0ef45152e19c92037ebe7a1ff45060a0

secondary/planner/executor.go

@@ -404,7 +404,7 @@ func genTransferToken(solution *Solution, masterId string, topologyChange servic
 					token = &common.TransferToken{
 						MasterId:     masterId,
 						SourceId:     "",
-						DestId:       indexer.NodeUUID,
+						DestId:       index.destNode.NodeUUID,
 						RebalId:      topologyChange.ID,
 						State:        common.TransferTokenCreated,
 						InstId:       index.InstId,