isl_aff.c: flat_range_product_entry: clean up space compatibility check
isl_aff.c: flat_range_product_entry: clean up space compatibility check

Signed-off-by: Sven Verdoolaege <dd860110a62b19214c4ee03aec0abffecb4e86b8@cerebras.net>

Meinersbur/isl,Meinersbur/isl,Meinersbur/isl,Meinersbur/isl