Set Bohr hardfork date on bsc mainnet

Author: bunnie307

bmv/bsc2/src/main/java/foundation/icon/btp/bmv/bsc2/ChainConfig.java

@@ -53,7 +53,7 @@ public static ChainConfig fromChainID(BigInteger cid) {
         if (cid.longValue() == 56L) {
             // BSC Mainnet
             return new ChainConfig(56L, 200L, 3L, BigInteger.valueOf(31302048L),
-                    BigInteger.valueOf(1718863500L), null);
+                    BigInteger.valueOf(1718863500L), BigInteger.valueOf(1727317200L));
         } else if (cid.longValue() == 97L) {
             // BSC Testnet
             return new ChainConfig(97L, 200L, 3L, BigInteger.valueOf(31103030L),