to decode ETROG processBatches use ETROG contract (#3360)

* decode old ETROG processBatches use ETROG contract
* fix sanity genesis

etherman/etherman.go

@@ -1358,7 +1358,7 @@ func decodeSequencesElderberry(txData []byte, lastBatchNumber uint64, sequencer
 func decodeSequencesEtrog(txData []byte, lastBatchNumber uint64, sequencer common.Address, txHash common.Hash, nonce uint64, l1InfoRoot common.Hash) ([]SequencedBatch, error) {
 	// Extract coded txs.
 	// Load contract ABI
-	smcAbi, err := abi.JSON(strings.NewReader(polygonzkevm.PolygonzkevmABI))
+	smcAbi, err := abi.JSON(strings.NewReader(etrogpolygonzkevm.EtrogpolygonzkevmABI))
 	if err != nil {
 		return nil, err
 	}

synchronizer/synchronizer.go

@@ -419,18 +419,15 @@ func (s *ClientSynchronizer) RequestAndProcessRollupGenesisBlock(dbTx pgx.Tx, la
 }
 
 func sanityCheckForGenesisBlockRollupInfo(blocks []etherman.Block, order map[common.Hash][]etherman.Order) error {
-	if len(blocks) != 1 || len(order) != 1 || len(order[blocks[0].BlockHash]) != 2 {
+	if len(blocks) != 1 || len(order) < 1 || len(order[blocks[0].BlockHash]) < 1 {
 		log.Errorf("error getting rollupInfoByBlockRange after set the genesis. Expected 1 block with 2 orders")
 		return fmt.Errorf("error getting rollupInfoByBlockRange after set the genesis. Expected 1 block with 2 orders")
 	}
 	if order[blocks[0].BlockHash][0].Name != etherman.ForkIDsOrder {
 		log.Errorf("error getting rollupInfoByBlockRange after set the genesis. Expected ForkIDsOrder, got %s", order[blocks[0].BlockHash][0].Name)
 		return fmt.Errorf("error getting rollupInfoByBlockRange after set the genesis. Expected ForkIDsOrder")
 	}
-	if order[blocks[0].BlockHash][1].Name != etherman.InitialSequenceBatchesOrder {
-		log.Errorf("error getting rollupInfoByBlockRange after set the genesis. Expected InitialSequenceBatchesOrder, got %s", order[blocks[0].BlockHash][0].Name)
-		return fmt.Errorf("error getting rollupInfoByBlockRange after set the genesis. Expected InitialSequenceBatchesOrder")
-	}
+
 	return nil
 }