[R4R]: V1 to v2 debug (#1394)

# Goals of PR

Core changes:
* fix gaslimit upgrade bug

Notes:
no

Related Issues:
no

l2geth/consensus/clique/clique.go

@@ -586,7 +586,7 @@ func (c *Clique) FinalizeAndAssemble(chain consensus.ChainReader, header *types.
  //if UpdateGasLimitBlock = 0, from the genesis block
  //if UpdateGasLimitBlock = x, from the x
  mantleUpgradeConfig := upgrade.NewMantleUpgradeConfig(chain.Config().ChainID)
- if !mantleUpgradeConfig.IsUpdateGasLimitBlock(header.Number) && chain.Config().ChainID == params.MantleTestnetChainID {
+ if !mantleUpgradeConfig.IsUpdateGasLimitBlock(header.Number) && chain.Config().ChainID.Cmp(params.MantleTestnetChainID) == 0 {
  //for testnet, when the UpdateGasLimitBlock is actived, we must update the gaslimit for all of block
  //which is after the "updategaslimit" block
  header.GasLimit = uint64(upgrade.PreUpgradedGaslimit)