sched/psi: Bail out early from irq time accounting

mainline inclusion
from mainline-v6.7-rc1
commit 0c2924079f5a83ed715630680e338b3685a0bf7d
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8BCV4

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0c2924079f5a83ed715630680e338b3685a0bf7d



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We could bail out early when psi was disabled.

Signed-off-by: Haifeng Xu <haifeng.xu@shopee.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Chengming Zhou <zhouchengming@bytedance.com>
Link: https://lore.kernel.org/r/20230926115722.467833-1-haifeng.xu@shopee.com


Signed-off-by: Lu Jialin <lujialin4@huawei.com>