[BUGFIX] Optimize index of some database tables

Some database indexes in TYPO3 tables are not optimal:
they include the sorting field in the wrong position.
MySQL will not use such index for sorting (sorting
field must always be in the end of index).

Change-Id: I9d900013ac5cabb7bdd7130ff2502674ee2c9b2a
Resolves: #21381
Reviewed-on: http://review.typo3.org/4317
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn
Reviewed-by: Mario Rimann
Reviewed-by: Xavier Perseguers
Tested-by: Xavier Perseguers