sched: programmable: Fix is_cpu_allowed build error

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I8OIT1



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Patch fixes build errors like this:
kernel/sched/sched.h:3625:13: error: inlining failed in
call to ‘always_inline’ ‘is_cpu_allowed’: function body
 not available

Signed-off-by: Guan Jing <guanjing6@huawei.com>