sched: Clean up and standardize #if/#else/#endif markers in sched/topology.c

- Use the standard #ifdef marker format for larger blocks,
   where appropriate:

        #if CONFIG_FOO
        ...
        #else /* !CONFIG_FOO: */
        ...
        #endif /* !CONFIG_FOO */

 - Fix whitespace noise and other inconsistencies.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Shrikanth Hegde <sshegde@linux.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Valentin Schneider <vschneid@redhat.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/20250528080924.2273858-19-mingo@kernel.org

kernel/sched/topology.c

@@ -315,7 +315,7 @@ static int __init sched_energy_aware_sysctl_init(void)
 }
 
 late_initcall(sched_energy_aware_sysctl_init);
-#endif
+#endif /* CONFIG_PROC_SYSCTL */
 
 static void free_pd(struct perf_domain *pd)
 {
@@ -451,9 +451,9 @@ free:
 
 	return false;
 }
-#else
+#else /* !(CONFIG_ENERGY_MODEL && CONFIG_CPU_FREQ_GOV_SCHEDUTIL): */
 static void free_pd(struct perf_domain *pd) { }
-#endif /* CONFIG_ENERGY_MODEL && CONFIG_CPU_FREQ_GOV_SCHEDUTIL*/
+#endif /* !(CONFIG_ENERGY_MODEL && CONFIG_CPU_FREQ_GOV_SCHEDUTIL) */
 
 static void free_rootdomain(struct rcu_head *rcu)
 {
@@ -1600,7 +1600,7 @@ static int			sched_domains_curr_level;
 int				sched_max_numa_distance;
 static int			*sched_domains_numa_distance;
 static struct cpumask		***sched_domains_numa_masks;
-#endif
+#endif /* CONFIG_NUMA */
 
 /*
  * SD_flags allowed in topology descriptions.
@@ -1716,7 +1716,7 @@ sd_init(struct sched_domain_topology_level *tl,
 				       SD_WAKE_AFFINE);
 		}
 
-#endif
+#endif /* CONFIG_NUMA */
 	} else {
 		sd->cache_nice_tries = 1;
 	}