Reduced player numbers in Dune 2000 maps with too few space to build

First I thought about removing them completely, but then: we don't really have alternatives so I re-arranged spawn points.

What mappers tend to forget: you need space to build and you can't build on sand. Tech buildings are large and this is not "Trike Rush 2000" anymore. I won't except patches that try to remove building bibs or cut off some extra cells from buildings. Instead badly designed maps will get thrown out now.