x86/sched: Rewrite topology setup

Instead of having a number of fixed topologies to pick from; build one
on the fly. This is both simpler now and simpler to extend in the
future.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20230601153522.GB559993%40hirez.programming.kicks-ass.net