Fix MySQL ER_LOCK_WAIT_TIMEOUT SQLState code. (#222)

Fix #220.

Author: AroraAsh

src/main/java/com/oltpbenchmark/api/Worker.java

@@ -500,7 +500,7 @@ private boolean isRetryable(SQLException ex) {
         if (errorCode == 1213 && sqlState.equals("40001")) {
             // MySQL ER_LOCK_DEADLOCK
             return true;
-        } else if (errorCode == 1205 && sqlState.equals("41000")) {
+        } else if (errorCode == 1205 && sqlState.equals("40001")) {
             // MySQL ER_LOCK_WAIT_TIMEOUT
             return true;
         }