sched/idle: Reported an error when an illegal negative value is passed

hulk inclusion
category: bugfix
bugzilla: 180842 https://gitee.com/openeuler/kernel/issues/I4DDEL



Reported an error when an illegal negative value is passed. The allowed value is
0 to INT_MAX.

Signed-off-by: Li Hua <hucool.lihua@huawei.com>
Reviewed-by: Chen Hui <judy.chenhui@huawei.com>
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>