Off Heap mixes up lifespan and max idle

While fixing https://github.com/infinispan/infinispan/pull/5828 it was found that lifespan and max idle parts of the test fail when using off heap https://ci.infinispan.org/job/Infinispan/job/PR-5828/2/display/redirect

It looks like when creating off heap memory we put max idle then lifespan instead of the other order.