ANDROID: sched: fair: balance for single core cluster

Android will unset SD_LOAD_BALANCE for single core cluster domain and
for some product it is true to have a single core cluster and the MC
domain thus lacks the SD_LOAD_BALANCE flag. This will cause
select_task_rq_fair logic break and the task will spin forever
in that core.

Fixes: 00bbe7d605a9 "ANDROID: sched: EAS & 'single cpu per cluster'/cpu hotplug interoperability"

Bug: 141334320
Test: boot and see task on core7 scheduled correctly
Signed-off-by: Wei Wang <wvw@google.com>
Change-Id: I08917836d8b99116353bfec5791af69d916583fe

kernel/sched/fair.c

@@ -7449,7 +7449,7 @@ select_task_rq_fair(struct task_struct *p, int prev_cpu, int sd_flag, int wake_f
 	rcu_read_lock();
 	for_each_domain(cpu, tmp) {
 		if (!(tmp->flags & SD_LOAD_BALANCE))
-			break;
+			continue;
 
 		/*
 		 * If both 'cpu' and 'prev_cpu' are part of this domain,