KABI: KABI reservation for IMA namespace

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4REJ3
CVE: NA

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KABI reservation for IMA namespace

reference: https://gitee.com/openeuler/kernel/issues/I49KW1



Signed-off-by: Guo Zihua <guozihua@huawei.com>
Reviewed-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Reviewed-by: weiyang wang <wangweiyang2@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>