irqdomain: Add kabi_reserve in irqdomain

hulk inclusion
bugzilla: https://gitee.com/openeuler/kernel/issues/I4MZU1


CVE: NA

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Add kabi_reserve in irqdomain.h

Signed-off-by: Lin Ruizhe <linruizhe@huawei.com>
Reviewed-by: Liao Chang <liaochang1@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>