x86/sched: Enable cluster scheduling on Hybrid

With the SMT vs non-SMT balancing issues sorted, also enable the
cluster domain for Hybrid machines.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>

Author: Peter Zijlstra

arch/x86/kernel/smpboot.c

@@ -632,14 +632,9 @@ static void __init build_sched_topology(void)
 	};
 #endif
 #ifdef CONFIG_SCHED_CLUSTER
-	/*
-	 * For now, skip the cluster domain on Hybrid.
-	 */
-	if (!cpu_feature_enabled(X86_FEATURE_HYBRID_CPU)) {
-		x86_topology[i++] = (struct sched_domain_topology_level){
-			cpu_clustergroup_mask, x86_cluster_flags, SD_INIT_NAME(CLS)
-		};
-	}
+	x86_topology[i++] = (struct sched_domain_topology_level){
+		cpu_clustergroup_mask, x86_cluster_flags, SD_INIT_NAME(CLS)
+	};
 #endif
 #ifdef CONFIG_SCHED_MC
 	x86_topology[i++] = (struct sched_domain_topology_level){