LoongArch: fix CONFIG_TRACE_IRQFLAGS_SUPPORT not defined

LoongArch inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7PT2H



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Signed-off-by: Yingkun Meng <mengyingkun@loongson.cn>
Signed-off-by: Hongchen Zhang <zhanghongchen@loongson.cn>
(cherry picked from commit c5226585)