When InnoDB is killed while XA ROLLBACK is executing, the transaction
would incorrectly be recovered as being in XA PREPARE state, and
a subsequent XA COMMIT would be possible, breaking the A in ACID and
potentially causing corruption between the indexes of a table, depending
on which changes done by the XA ROLLBACK got persisted.

trx_undo_set_state_at_prepare(): Add the parameter rollback, to allow
XA ROLLBACK to be persisted.

trx_rollback_for_mysql(): When rolling back a XA PREPARE transaction,
move its persistent insert_undo and update_undo into ACTIVE state,
so that the rollback will be completed by crash recovery, in case the
server is killed before the XA ROLLBACK is finished and persisted.

RB:8596
Reviewed-by: Jimmy Yang <jimmy.yang@oracle.com>