[s1926] Fix some summon spells which have only coordinate targeting

Note: These whole exceptions to enforce a unit-target for spells that simply should not have a unit target is a huge hack anyways, caused by the deficiencies of mangos (old) spell system

(based on commit [12395] - 8b720dd)

Signed-off-by: Xfurry <xfurry@scriptdev2.com>