Bug#4511: QBE fails to generate LEFT join for InnoDB foreign keys in absence of configuration storage.

Bug#4511: QBE fails to generate LEFT join for InnoDB foreign keys in absence of configuration storage.
https://sourceforge.net/p/phpmyadmin/bugs/4511/

Signed-off-by: Ashutosh Dhundhara <ashutoshdhundhara@yahoo.com>