hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49KW1
CVE: NA

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Maintain per ima namespace measurement list. It will be used to provide
information about the namespace measurements in securityfs and to clean up
hash table entries when the namespace is destroyed.

The global measurement list remains and is not modified. It is necessary to
keep it so that the PCR value can be recreated.
Signed-off-by: NKrzysztof Struczynski <krzysztof.struczynski@huawei.com>
Reviewed-by: NZhang Tianxing <zhangtianxing3@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>