Bug 13457: Suggestions.t expects sample itemtypes

Bug 13457: Suggestions.t expects sample itemtypes

TEST PLAN
---------
1) Make sure you have more than 8 item types, and preferably
   something with a non-sample default code for itemtypes.
2) prove t/db_dependent/Suggestions.t
   -- this will fail
3) Apply patch
4) prove t/db_dependent/Suggestions.t
   -- this will succeed
5) run koha qa test tools

Signed-off-by: Paola Rossi <paola.rossi@cineca.it>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>