Problem:
--------

The metadata check failed during auto sync of tables restored using
the ndb_restore tool. This is a timing issue related to indexes
that show up in 2 scenarios:

1. When the indexes haven't been created in NDB Dictionary and the
   table has been picked up for auto sync.
2. When the indexes have been created but aren't usable yet and the
   table has been picked up for auto sync.

Fix:
----

1. The missing indexes scenario was handled by an earlier fix by
   failing the sync as a temporary error following which the sync
   is retried. This is tweaked to not log an error message since
   it's expected behaviour.
2. The second scenario is fixed by extending the above check for
   missing indexes by also looking at the state of the indexes
   and treating them as missing if they aren't online at that
   point in time. There's also a possibility that an index is
   created (but not online) in the gap between the initial index
   check and the more comprehensive metadata check that follows
   which also deals with indexes. The comparison of such indexes
   is skipped.

Change-Id: I44e31f43ba4e082743eab59eab6b455d5db923fc