fix(net): use equals to compare BlockId

Author: 317787106

framework/src/main/java/org/tron/core/net/service/sync/SyncService.java

@@ -169,7 +169,7 @@ private LinkedList<BlockId> getBlockChainSummary(PeerConnection peer) throws P2p
     if (beginBlockId.getNum() == 0) {
       highNoFork = high = tronNetDelegate.getHeadBlockId().getNum();
     } else {
-      if (tronNetDelegate.getKhaosDbHeadBlockId().compareTo(beginBlockId) == 0
+      if (tronNetDelegate.getKhaosDbHeadBlockId().equals(beginBlockId)
           || tronNetDelegate.containBlockInMainChain(beginBlockId)) {
         highNoFork = high = beginBlockId.getNum();
       } else {