elm entry: check for null return from eina_rectangle_new
elm entry: check for null return from eina_rectangle_new

this will handle if eina_rectangle_new can't allocate a rect
(basically never will happen...)

@fix

tasn/elementary,tasn/elementary,rvandegrift/elementary,tasn/elementary,rvandegrift/elementary,rvandegrift/elementary,tasn/elementary,tasn/elementary,rvandegrift/elementary