Fix 0012033: admin/check utility treats MySQL views like tables

The function test_database_utf8() checks the Collation field of the
"SHOW TABLE STATUS" statement for every table. This will fail on views
as written on
http://dev.mysql.com/doc/refman/5.5/en/show-table-status.html quote "For
views, all the fields displayed by SHOW TABLE STATUS are NULL except
that Name indicates the view name and Comment says view."