[PDI-12639][5.1.1.0] Hive/Hive2: Unable to pre-load connection to the connection pool.

Backported from 5.1

Original hIve jdbc driver has a mess-up of the some methods implementations :
* It always returns getAutoCommit() = true;
* it ignores setAutoCommit(false)
* it throw exception if setAutoCommit(true)

In fact it always works as usual driver with enabled autoCommit so invoke of the setAutoCommit method was overridden for ignoring behavior.